Important Safety Information
Please read all instructions carefully before assembly and use. Retain this manual for future reference.
- Always follow assembly instructions precisely.
- Keep fingers and body parts clear of moving components during assembly and adjustment.
- Do not exceed the maximum weight capacity of 400 lbs (181 kg).
- Ensure all bolts and screws are securely tightened after assembly and periodically check for tightness.
- Use the chair on a level surface to prevent tipping.
Setup and Assembly
The BOLISS LB-2010 office chair requires assembly. All necessary parts and tools are included in the packaging. Assembly instructions are typically printed on the shipping carton and provided in a separate booklet.

Image: Assembly instructions are often found printed directly on the product packaging for convenience.
Assembly Steps Overview:
- Unpack Components: Carefully remove all parts from the box and verify against the parts list in the manual.
- Attach Casters to Base: Insert the casters into the holes on the five-star base.
- Insert Gas Lift: Place the gas lift cylinder into the center hole of the five-star base.
- Assemble Mechanism: Secure the control mechanism to the underside of the seat cushion using the provided screws. Ensure the front of the mechanism aligns with the front of the seat.
- Attach Armrests: Fasten the armrests to the seat cushion using the designated screws.
- Connect Backrest: Attach the backrest to the seat assembly.
- Place Seat on Gas Lift: Carefully place the assembled seat onto the gas lift cylinder.
- Final Check: Ensure all connections are secure and the chair functions correctly before use.
An Allen key is typically provided for assembly. For detailed visual guidance, refer to the specific diagrams in your product's instruction booklet.
Product Components
The BOLISS LB-2010 chair is constructed with durable materials for stability and comfort.

Image: Key components of the BOLISS LB-2010 chair, including the nylon base, gas lift cylinder, silent PU casters, and adjustable armrests.
- Nylon Base: Provides solid construction and stability.
- Cylinder Column: A gas lift cylinder tested for durability, ensuring reliable height adjustment.
- Casters: Silent PU wheels designed for smooth, noise-free movement and long-lasting performance.
- Armrests: Height-adjustable armrests with soft cushioning for comfort.
Operating Instructions and Adjustments
The BOLISS LB-2010 chair offers several adjustments to customize your seating experience for optimal comfort and support.
Ergonomic Design Features:

Image: The ergonomic backrest is designed to support the thoracic and lumbar vertebrae, promoting proper posture.
- Mesh Backrest: The wider and higher backrest features breathable nylon mesh and an ergonomic waist support design to provide comfort and reduce discomfort during prolonged sitting.
- Seat Cushion: The seat cushion is designed to conform to the human body shape, made from high-resilience molded foam to prevent deformation and maintain comfort over long periods.

Image: The 3D modeled ergonomic seat cushion features thick, high-resilience foam for sustained comfort and support.
Chair Adjustments:

Image: Visual guide for adjusting seat height and engaging the backrest tilt function.
- Seat Height Adjustment: To adjust the seat height, lift the lever located on the right side of the chair while seated. Release the lever at the desired height. To lower, remain seated and lift the lever. To raise, stand up and lift the lever.
- Armrest Height Adjustment: Press the button on the side of each armrest to adjust its height. Move the armrest up or down to your preferred position and release the button to lock.
- Backrest Tilt and Lock: The backrest can tilt independently. Use the lever on the left side to adjust the tilt angle. Push down the handle to lock the backrest in an upright position or pull it out to allow tilting. An adjustable tilt elasticity knob is located at the front of the mechanism to control the resistance of the tilt.
- 360-Degree Swivel: The chair features a 360-degree swivel function, allowing for easy rotation without moving the base.
Maintenance
Regular maintenance helps prolong the life and performance of your BOLISS office chair.
- Cleaning: Wipe clean with a damp cloth. Avoid harsh chemicals or abrasive cleaners that may damage the materials.
- Fastener Check: Periodically check all screws and bolts to ensure they remain tight. Re-tighten if necessary to maintain stability and safety.
- Caster Care: Keep casters free of debris (hair, dust, etc.) to ensure smooth rolling.
- Armrest Padding: While durable, armrest cushioning may compress over time with heavy use.
Troubleshooting
If you encounter issues with your BOLISS LB-2010 chair, refer to the following common solutions:
- Chair Sinks or Does Not Hold Height: This typically indicates an issue with the gas lift cylinder. If the chair consistently lowers on its own, the gas lift may need replacement. Contact customer support for assistance.
- Wobbly Armrests: A slight wobble in adjustable armrests can be normal. Ensure all armrest attachment screws are securely tightened. If excessive, contact customer support.
- Chair Does Not Roll Smoothly: Check casters for trapped debris such as hair or lint. Clean the casters thoroughly. Ensure the chair is used on an appropriate surface.
- Squeaking Noises: Check all bolted connections and tighten any loose screws. A small amount of lubricant applied to moving parts (e.g., tilt mechanism) may also help, but avoid applying to the gas lift.
Product Specifications
| Feature | Specification |
|---|---|
| Brand | BOLISS |
| Model Name | LB-2010 |
| Color | Black Frame Black Fabric |
| Product Dimensions (D x W x H) | 25.4" x 28.1" x 37.0"-40.6" |
| Maximum Weight Recommendation | 400 Pounds |
| Back Style | Mesh Back |
| Special Features | Adjustable Lumbar, Adjustable Arm Rest, Seat Lock, Tilting |
| Seat Height | Adjustable, up to 22.5 Inches |
| Seat Depth | 18 inches |
| Item Weight | 30.6 pounds |
| Fill Material | Molded Foam |
| Assembly Required | Yes |
Warranty and Support
BOLISS is committed to customer satisfaction and provides after-sales service for its products.
- Warranty Period: Within one year of purchase, if any issues arise with your BOLISS LB-2010 chair, please contact customer service.
- Contact Support: For any questions, concerns, or warranty claims, please refer to the contact information provided with your purchase or visit the official BOLISS website for support options.