Assembly, Care, and Troubleshooting

We sincerely apologize for any inconvenience this may cause. For assembly instructions, please refer to the official full assembly video: https://www.youtube.com/@HbadaGlobal. This video provides clear guidance for all steps to ensure a safe and smooth assembly process. If you are unable to view the video or require further assistance, please provide your order number. We will then send you the assembly video specific to your chair model. If you have any questions during assembly, please feel free to contact us at any time. We will guide you through the process step-by-step. Thank you for your cooperation and patience.

We sincerely apologize for any inconvenience this may cause. If you find that screws are missing, damaged, or the wrong size during assembly, please contact our customer support. When you do so, please provide your order number, photos showing the problematic parts, the barcode printed on the chair base, and your shipping address. We will promptly ship the necessary screws or parts free of charge to help you complete the assembly smoothly. In the unlikely event that the required parts are out of stock, we will provide you with a link to purchase them. If you send us the receipt after your purchase, we will refund the full cost. Thank you for your cooperation and patience.

We hope this information is helpful. Please watch this video for instructions: https://www.youtube.com/shorts/KULJrSYNjno

The lumbar support has 7 adjustment levels, including the initial position. You will hear a click when you pull it up 6 levels. Pulling it down 7 levels will release the lock. Once unlocked, you can readjust the position by pulling it all the way down. Please also refer to this video: https://www.youtube.com/watch?v=JDnNLkLM_Hc

The front-to-back adjustment function does not automatically reset during use. You need to pull it all the way to release the lock. This guide groove can only be fixed in the front-to-back direction when the internal buckle is pressed to release the lock.

I hope this information is helpful.

When working or studying: Sit up straight with your back extended, adjust the armrests to elbow height (approx. 90°), and align them with the height of your desk. Adjust the headrest slightly lower to provide natural support for your neck.

When gaming: Lean slightly forward, and adjust the armrests lower and further forward to relax your wrists. Set the headrest slightly higher so that it provides comfortable support when you occasionally lean back.

When resting or napping: Recline the backrest, and also adjust the armrests and headrest higher to ensure proper support for your head, neck, and arms.

For more detailed adjustment methods, you can watch detailed instructional videos via the following link: https://www.youtube.com/@HbadaGlobal

Thank you for your cooperation and patience.

I hope this information is helpful.

If your chair is making an unusual noise, it is often due to friction between moving parts, loose screws, or a lack of lubrication in the joints. Please try the following steps:

1. Check that all screws on the seat, backrest, base, and armrests are tight. If any are loose, tighten them.
2. Apply a small amount of lubricant (such as silicone oil, sewing machine oil, or a lubricating spray) to the gas cylinder, rotating parts, and all connection points.
3. Check if any plastic parts are rubbing against each other. If they are, simply adjusting the position of the parts can resolve the issue.

If the noise does not improve after trying the above, please contact customer support with your order number, a detailed description of the symptoms, the barcode from the chair base, and your delivery address. We will respond promptly.

If your chair sinks while you're sitting in it, it's possible that the gas cylinder is faulty or has deteriorated over time, causing a drop in internal pressure and making it unable to maintain the seat height.

First, please check the following points:

1. Confirm that the height adjustment lever is fully returned to its original position and properly locked.
2. Check that no components under the seat are interfering with the height adjustment mechanism.
3. If the chair still sinks after checking the above, the gas cylinder may need to be replaced.

We apologize for the inconvenience, but please send your order number, photos of the defective part, the barcode on the base, and your delivery address to customer support. After confirmation, we will arrange for a replacement gas cylinder.

If the backrest reclining mechanism does not move and you are unable to unlock it, please try the following methods first:

1. Lean firmly against the backrest to temporarily relieve tension within the mechanism.
2. Check for loose screws, foreign objects caught in the mechanism, or plastic parts interfering with it.
3. If you are still unable to unlock the mechanism after trying the above, please send your order number, photos of the affected area, a barcode from the chair's base, and your shipping address to customer support.

Once we have reviewed the information, we will promptly inform you of the next steps.

To ensure your high-density mesh material stays in good condition for an extended period, please refer to the care instructions below:

1. Daily Maintenance
   Gently wipe or vacuum dust and small debris from the mesh surface using a soft, dry cloth or a small vacuum cleaner. Be careful not to damage the fabric.
2. For Stubborn Stains
   For persistent stains, gently wipe the affected area with an alcohol wipe. Avoid using strong chemical detergents, bleach, or hot water, as these can damage the mesh fibers.
3. For Long-Term Use
   Do not place sharp or heavy objects on the mesh for extended periods. Also, avoid storing or using the mesh in high-temperature environments to prevent fiber degradation and sagging.
4. Precautions for Daily Use
   Do not pull or rub the mesh forcefully. If you notice any fraying, do not pull on it; instead, contact customer support if necessary.

Thank you for your understanding.

We recommend checking for loose bolts and screws in each part, and retightening them as needed, every 1 to 3 months, depending on daily usage frequency.

If you use the chair for many hours every day, we recommend checking it about once a month. For typical household use, checking it about once every three months is sufficient.
Regularly retightening the bolts and screws will prevent squeaking, wobbling, and loose parts, allowing you to use your chair comfortably for longer.

If you plan to store your chair for an extended period, please note the following:

1. Store the chair indoors in a dry, well-ventilated area, away from direct sunlight.
2. To prevent fading, cracking, and deterioration of mesh, plastic, and cushion materials, avoid direct sunlight and prolonged exposure to the sun.
3. To prevent deformation and mold, avoid storing the chair with sharp objects, under heavy pressure, or in humid conditions.
4. If possible, we recommend covering the chair with a dust cover to keep it clean.

Thank you for reaching out. If your seat is tilted or leaning to one side, please check the following points first:

• Ensure all screws on the underside of the seat are evenly and securely tightened.
• Confirm that the five-star base is placed on a flat and stable floor surface.
• Check the gas cylinder and mounting plate for any damage or improper installation.
• Verify that the chair has been assembled correctly according to the instruction manual.

If the issue persists after checking the above, please contact us with your order number, photos showing the issue, the barcode from the chair base, and your shipping address. We will then be able to assist you further. Thank you for your cooperation and patience.

When you pull the backrest upwards, it usually locks into place at several different positions. If you pull it all the way up, it will automatically return to the lowest position. You will hear a "click" sound each time it locks.

As a guideline, the backrest can be pulled up a maximum of 4 times; pulling it up a 5th time will return it to its initial position.

Please refer to the attached video explaining this operation: Backrest.mp4

Please try it out and let us know if you notice anything unusual with the movement. Thank you for your cooperation and patience.

When concentrating on your work, we recommend adjusting the headrest to support the center of your neck (cervical spine), not just the back of your head.

Height: Adjust the cushioned part of the headrest so that it aligns with the center of your neck.

Angle: Tilt it slightly forward so that it gently touches your neck when you sit up straight, without pushing your head forward.

While working, do not fully lean your head back; instead, support it lightly to allow your neck to remain in a natural and relaxed position.

This posture will reduce strain during long periods of work and help prevent neck stiffness. Thank you for your cooperation and patience.

To adjust the height: First, lower the headrest all the way down, then pull it up one notch at a time to your desired height. All intermediate positions will lock automatically, but please do not pull it up to the very top position. This position is a circulatory mechanism and cannot be fixed.

To adjust the front/back angle: First, push the headrest all the way forward, then slowly pull it back to your desired angle. Please note that if you pull it all the way back, it will enter a circulatory mode and will not be able to lock. If you wish to readjust, push it all the way forward again, then adjust it to the desired position.

When adjusted correctly, the headrest will firmly stay in position. Thank you for your cooperation and patience.

This model features an independent, self-adjusting spring-loaded lumbar support. No matter what posture you sit in, the lumbar support automatically adjusts to the optimal position based on the pressure from your body. The design, which separates the backrest and lumbar area, allows for more pinpoint support and prevents your lower back from floating unsupported. Since manually adjusting the lumbar support every time you change posture during work can be cumbersome, this self-adjusting design provides more comfortable and continuous support. Thank you for your cooperation and patience.

While seated in the chair, use the recline lever located under the seat to adjust the backrest to your desired angle. Once you have found a comfortable position, push the lever firmly until you hear a "click" and it locks into place. This will secure the backrest in that position. To unlock and return the backrest to its original upright position, pull the lever out again. If the backrest cannot be locked or unexpectedly lowers, please check if the mechanism is jammed or if any screws are loose. If the issue persists, please do not hesitate to contact customer support. Thank you for your cooperation and understanding.

The 4D armrests feature height adjustment, front-to-back adjustment, rotational adjustment, and a nap-sync function. Here's how to use them:

Height Adjustment: Press the button on the armrest and move it up or down to a comfortable height. Release the button to lock it in place.

Front-to-Back Adjustment: Slide the armrest pad forward or backward to adjust it to the length of your arms and your posture.

Rotational Adjustment: Rotate the armrest pad left or right to keep your wrists in a natural, straight position.

Nap-Sync Function: When you recline the chair into nap mode, the armrests automatically tilt, syncing with the backrest to provide continuous, comfortable support.

Thank you for your cooperation and patience.

The forward and backward adjustment of the headrest is a circulating stepped structure. First, push the headrest all the way forward, and then slowly pull it back. Please note that if you pull it all the way back, it will enter the circulating mode and will not be able to be locked. If you want to re-adjust, push it all the way forward again and then re-adjust it to the desired position.

Similarly, the up and down height adjustment is also a circulating stepped structure. First, lower the headrest all the way down, and then adjust it up one step at a time. All intermediate steps can be locked, but only the top step is circulating and cannot be locked.

There is an official video that guides you on how to adjust the headrest, please refer to it: https://www.youtube.com/@HbadaGlobal

If you have any other questions, please feel free to contact us at any time. Thank you for your cooperation and patience.

We apologize for any inconvenience this may cause. To maximize the ergonomic benefits and prevent shoulder fatigue and wrist pain, please refer to the following points:

Adjust the armrest height so that your elbow forms approximately a 90-degree angle when your arm rests naturally.

Align the armrests with the height of your keyboard or desk to keep your wrists straight while typing, preventing them from bending up or down.

Avoid setting the armrests too high, as this can cause your shoulders to hunch and lead to muscle tension.

Ensure that the armrests do not push your shoulders inward; your shoulders should remain naturally relaxed.

Properly adjusted armrests evenly support your arms and reduce strain, effectively preventing discomfort in your shoulders, neck, and wrists from prolonged use.

For more detailed adjustment procedures, please also refer to our instructional video, which guides you on how to adjust each part to the most comfortable position that suits you. Thank you for your cooperation and patience.

We apologize for any inconvenience this may cause. To adjust the armrests to a height that allows them to slide smoothly under your desk, please try the following steps:

Locate the adjustment lever or button on the side of each armrest.

While pressing the lever or button, lower the armrest to its lowest position.

Release the lever to lock it in place.

Please ensure that both the left and right armrests are at the same height. If the heights are not aligned, it can lead to imbalance.

With the armrests lowered, the chair can be fully tucked under the desk, allowing for space-saving use. Thank you for your cooperation and patience.

Due to manufacturing tolerances and independent adjustment mechanisms, a slight height difference may occur between the left and right armrests. Please check the following points and attempt to adjust them:

Check if both the left and right armrest height adjustment levers are securely locked at the same level.

Gently press down on both armrests simultaneously to ensure they are fully seated.

If one armrest is loose, retighten the fixing screws located on the underside of the armrest.

After adjustment, check if both armrests are aligned. If a noticeable height difference persists, please contact us with photos, your order details, the chassis barcode, and your shipping address. We will provide further assistance. Thank you for your cooperation and patience.

To adjust your chair to the optimal ergonomic sitting height, please try the following steps:

Stand next to the chair and, while pulling up the height adjustment lever, adjust the seat height so that your hips and knees are approximately at the same level when you sit down.

When seated, ideally your feet should be flat on the floor or footrest, and your knees should be naturally bent at about a 90-degree angle.

Avoid making the seat too high (causing your feet to dangle) or too low (putting strain on your thighs and lower back).

This posture will effectively reduce fatigue and help maintain a healthy spinal balance even during prolonged use.

For more detailed guidance, we also have an instructional video showing how to adjust each part to the most comfortable position. Please refer to it as well: https://www.youtube.com/@HbadaGlobal

The maximum weight capacity of the base and gas cylinder varies depending on the chair model (please see below for details). To ensure stability and safety, and to prolong the life of your gas cylinder and base, we recommend using them within the stated weight capacity. Thank you for your cooperation and patience.

The weight capacities for each model are as follows:

• Hbada J1 / J3: Up to 113 kg (approx. 250 lbs)
• Hbada P2 series: Up to 136 kg (approx. 300 lbs)
• Hbada E3 series: Up to 150 kg (approx. 330 lbs)

All Hbada chairs undergo rigorous testing to ensure that the base and gas cylinder can safely support the stated weight capacity. Please refer to each product page for the weight capacity applicable to your model.

A phenomenon where a chair gradually sinks and its height decreases while in use is often caused by a malfunction or gas leak in the gas cylinder. The main causes and solutions are as follows:

If the internal pressure of the gas cylinder is insufficient, it cannot stably support your weight and will gradually sink. It is normal to see a slight sinking during the initial period of use as the parts settle in, but if the sinking continues, it is likely that the gas cylinder needs to be replaced.

Your chair is covered by a 3-year warranty. If the symptoms do not improve, please contact us with photos showing the problem area, your order information, the barcode on the chassis, and your delivery address. We will then be able to assist you further. Thank you for your cooperation and patience.

If your chair wobbles, the following reasons may be considered:

Chairs are made by assembling multiple parts, so there is structurally some play in the screw connections. Because this play cannot be completely eliminated to achieve height adjustment and reclining functions, you may feel a slight movement.

The chair is equipped with casters that rotate 360 degrees, so you may feel a slight揺れ even when sitting.

If you are still concerned, please double-check that the fixing screws for the backrest and base are not loose. If there is any looseness, tightening them may resolve the issue.

Please rest assured that this product comes with a 3-year warranty. If the wobbling becomes more significant in the future, please feel free to contact us at any time. We will support you in resolving the issue. Thank you for your cooperation and for waiting.

Could you please take a short video of the chair when you push it? Focusing on the caster area where the movement is stiff would be particularly helpful in identifying the cause.

If only one specific caster is not moving smoothly, we recommend trying to lubricate it by applying a few drops of dish soap or cooking oil to the caster's axle bearing. This simple method can often significantly improve its movement, so please give it a try.

If the issue persists after trying this, please contact us again with the video you've taken. We will then provide further assistance. Thank you for your cooperation and patience.

To prevent mesh sagging from prolonged use, please consider the following simple points:

1. Avoid placing your weight on the same spot of the mesh for extended periods. This can cause the fibers to overstretch, leading to sagging over time.
2. Keep the mesh away from sharp objects and high-temperature environments. Damage to the fibers can reduce their elasticity and accelerate sagging.
3. When not in use, avoid placing heavy objects on the mesh. Prolonged weight can hasten sagging.

If you notice significant sagging that interferes with use, please contact us with photos of the sagging areas, your order details, the chassis barcode, and your shipping address. We will provide further assistance. Thank you for your understanding. If you have any other questions, please feel free to contact us at any time.

Small snags or loose threads in the mesh fabric typically do not affect the structural integrity of the chair. In most cases, these are minor surface imperfections. To prevent them from worsening, please avoid further pulling or rubbing the affected area, as this can cause the snag to spread.

If the condition gradually worsens and begins to impede usability, please contact us with photos of the snag, your order details, the chassis barcode, and your shipping address. We will promptly take appropriate action. Thank you for your understanding. Should you have any other questions, please do not hesitate to contact us at any time.

We sincerely apologize for any inconvenience this may cause. For stubborn stains on white or gray mesh material, we recommend gently wiping them with an alcohol wipe. Please be careful not to rub too hard to avoid damaging the mesh.

Please refrain from using strong chemical detergents, bleach, or hot water. After cleaning, allow the item to air dry in a well-ventilated area. Thank you for your understanding.

The footrest may feel a little stiff when you first try to pull it out. To ensure stability, firmly grasp the front of the footrest and pull it horizontally from under the seat.

If it still feels stiff, please check what might be catching. Please note that pulling it at an upward angle can cause it to catch.

If the above suggestions do not resolve the issue, please send us a short video of the situation. We will then be able to assist you further. Thank you for your understanding.

For detailed assembly video guides, please visit: https://www.youtube.com/@HbadaGlobal If you can't find the relevant video, please contact customer support with your order number, and we will send you the official video link directly. Should you encounter any steps during assembly that you find difficult, please don't hesitate to reach out for assistance at any time.

We sincerely apologize for any inconvenience this may cause. For complex product issues, please contact customer support directly via the message center. To help us resolve the issue more smoothly, please provide the following information: your order number, photos or videos showing the problem, the barcode on the chair chassis, a detailed description of the problem, and your delivery address. Our technical support team will review the information and provide you with a professional solution as quickly as possible. Thank you for your understanding.

Thank you for contacting us. To use the built-in footrest, pull it out from under the seat, then lift the footrest part upwards. When not in use, lower the footrest part back down, then slowly push it back under the seat to store it.

We also have a video that clearly explains the steps, please refer to it as well: Reclining footrest video.mp4 ([https://cdn.shopify.com/videos/c/o/v/3cbf701c059e4d1dbded16f3377275a0.mp4]). If you have any questions, please feel free to contact us at any time.