GlasFlength DDP-HX-C-3619-1B-BK
GlasFlength Ergonomic Office Chair Instruction Manual
Model: DDP-HX-C-3619-1B-BK
Brand: GlasFlength
1. Product Overview
The GlasFlength Ergonomic Office Chair is designed to provide comfort and support for extended periods of sitting. Featuring a mesh high back, adjustable headrest, and flip-up arms, this chair is suitable for various office and home environments. Its rolling swivel base ensures enhanced mobility and flexibility within your workspace.

Image: The GlasFlength Ergonomic Office Chair, showcasing its design and suitability for a modern office environment.
2. Key Features
- Versatile 360° Swivel: Allows for effortless positioning and optimal visibility.
- Customizable Comfort: Adjustable headrest for personalized head and neck support.
- Plush Seating Experience: High-density foam-padded seat with breathable mesh fabric for comfort and air circulation. Adjustable height settings for optimal productivity.
- Enhanced Mobility & Flexibility: Sturdy, smooth-rolling casters for easy movement.
- Space-Saving Design: Innovative flip-up armrests provide versatility and are ideal for compact spaces.

Image: Illustration of the ergonomic lumbar support, designed to provide comfort and promote good posture.

Image: Depiction of the breathable mesh material used in the backrest, highlighting its airflow properties for comfort.
3. Safety Information
Please read and follow all safety instructions carefully before assembly and use to prevent injury or damage to the product.
- Always follow the assembly instructions carefully.
- This chair has a maximum weight capacity of 250 pounds. Exceeding this limit may cause the chair to break or tip over, leading to injury.
- Ensure all screws and bolts are securely tightened before use and periodically check for looseness.
- Do not stand on the chair.
- Keep hands and feet clear of moving parts during adjustment.
4. Setup and Assembly
The GlasFlength Ergonomic Office Chair is designed for straightforward assembly. An installation manual with detailed, step-by-step instructions and all necessary tools are included in the packaging.
Please refer to the included 'Installation Manual' for precise assembly steps. Ensure all components are present before beginning assembly. It is recommended to assemble the chair on a soft, clean surface to prevent scratches.
5. Operating Instructions
This chair offers several adjustment points to customize your seating experience:
- Seat Height Adjustment: Locate the lever on the right side beneath the seat. Pull the lever up to raise the seat, or pull it up while seated to lower the seat. Release the lever to lock the height.
- Rocking Mode / Tilt Function: The chair features a rocking mode. Use the lever on the left side beneath the seat to engage or disengage the rocking function.
- Tilt Tension Control: The round knob located beneath the seat, at the front, allows you to adjust the tension of the tilt mechanism. Turn clockwise to increase tension (making it harder to recline) or counter-clockwise to decrease tension (making it easier to recline).
- Adjustable Headrest: The headrest can be moved up or down and its angle adjusted to provide optimal support for your head and neck.
- Flip-Up Armrests: The armrests can be flipped up to allow the chair to be pushed closer to a desk or for easier storage, making it a space-saving solution.
- 360° Swivel: The chair base allows for full 360-degree rotation for easy movement and access to your workspace.

Image: A visual guide to the three main adjustment points: Tension Control, Seat Height, and Rocking Mode.
6. Maintenance
Regular maintenance will help prolong the life and performance of your office chair:
- Cleaning: For the mesh back and fabric seat, use a soft cloth dampened with mild soap and water. Avoid harsh chemicals or abrasive cleaners. For the plastic and metal parts, wipe with a damp cloth.
- Casters: Periodically clean the casters (wheels) to remove dust, hair, and debris that can impede smooth rolling.
- Tighten Fasteners: Every few months, check all screws and bolts to ensure they are tight. Loose fasteners can affect the chair's stability and safety.
- Lubrication: If any moving parts, such as the gas lift or tilt mechanism, begin to squeak, a small amount of silicone-based lubricant can be applied.
7. Troubleshooting
If you encounter any issues with your GlasFlength Ergonomic Office Chair, please refer to the following common troubleshooting tips:
| Problem | Possible Cause | Solution |
|---|---|---|
| Chair is wobbly or unstable | Loose screws or improper assembly. | Check all screws and bolts, especially those connecting the seat to the base and the backrest. Tighten them securely. Refer to the assembly manual. |
| Chair does not adjust height | Gas lift malfunction or lever not engaged correctly. | Ensure the height adjustment lever is fully engaged. If the issue persists, the gas lift may need replacement. Contact customer support. |
| Casters (wheels) do not roll smoothly | Debris caught in casters or damaged casters. | Turn the chair over and remove any hair, dust, or debris from the casters. If damaged, consider replacing the casters. |
| Chair squeaks when moving or adjusting | Lack of lubrication or loose connections. | Apply a small amount of silicone lubricant to moving parts, especially around the tilt mechanism and gas lift. Check and tighten all connections. |
If these solutions do not resolve the issue, please contact GlasFlength customer support for further assistance.
8. Specifications
| Attribute | Detail |
|---|---|
| Brand | GlasFlength |
| Model Name | Ergonomic Office Chair w/ Flip-up Arms |
| Model Number | DDP-HX-C-3619-1B-BK |
| Color | Black |
| Product Dimensions | 20"D x 20"W x 46"H |
| Item Weight | 28 pounds |
| Back Style | Mesh Back |
| Arm Style | Flip-Up |
| Special Features | Adjustable Height, Arm Rest, Ergonomic, Rolling |
| Recommended Uses | Office |
| Fill Material | Foam |
| Assembly Required | Yes |
| UPC | 757106493525 |

Image: A comprehensive diagram illustrating the various dimensions of the GlasFlength Ergonomic Office Chair.
9. Warranty and Support
For information regarding product warranty, returns, or to purchase protection plans, please refer to your purchase documentation or contact the retailer directly. GlasFlength offers various protection plans for extended coverage.
For technical support, missing parts, or any other inquiries, please visit the official GlasFlength store on Amazon or contact their customer service department. You can find more information and contact details at the GlasFlength Store.
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