Introduction
Thank you for choosing the Dowinx Criss Cross Chair. This manual provides essential information for the safe assembly, operation, and maintenance of your new chair. Please read these instructions thoroughly before use and retain them for future reference.
Safety Information
To ensure safe operation and prevent injury, observe the following guidelines:
- Do not exceed the maximum weight capacity of 136.08 kg (300 pounds).
- Follow all assembly instructions carefully to ensure the chair's stability and proper function.
- Use adjustable features, such as armrests and height adjustment, safely and as intended to avoid pinching or other injuries.
- Keep hands and feet clear of moving parts during adjustment.
- Ensure all screws and bolts are tightened securely before use and periodically check for any loosening.
Package Contents
Before assembly, verify that all components are present and undamaged. The package should include:
- Chair Seat with integrated armrests
- Backrest
- Gas Lift Cylinder
- Star Base
- Casters (Wheels)
- Mounting Hardware (screws, washers, Allen wrench)
- Cushion (as an included component)
Assembly Instructions
Assembly of the Dowinx Criss Cross Chair is designed to be straightforward. Follow the clear, step-by-step pictorial guide provided in your package. Typically, assembly can be completed within 15 minutes.
- Attach the casters to the star base by pushing them firmly into the holes.
- Insert the gas lift cylinder into the center hole of the star base.
- Secure the backrest to the chair seat using the provided hardware.
- Attach the assembled seat and backrest to the top of the gas lift cylinder.
- Ensure all connections are tight and stable before using the chair.

Figure 1: Product Dimensions. This image illustrates the overall dimensions of the chair, including height, width, and depth, along with the maximum weight capacity of 300 lbs.
Operating Instructions
Armrest Adjustment
The chair features revolutionary 5-gear adjustable armrests. These micro-tilt gears allow for 15° to 70° elbow support, accommodating various postures, including cross-legged sitting. To adjust, simply lift the armrest and select your desired angle.

Figure 2: Five-Level Adjusting Armrests. This image highlights the five-level adjustable armrests, designed to provide support at various angles from 15° to 70° for different sitting postures.
Height Adjustment
Utilize the 3.54-inch height lift mechanism to adjust the chair's height. Locate the lever beneath the seat on the right side. Pull the lever up while seated to lower the chair, or pull it up while standing to raise it. Release the lever at your desired height.
Rocking Function
The chair offers a 30° Zero-Gravity Rocking feature for relaxation. To engage, recline slightly and tap your feet on the ground. This allows for a gentle sway, promoting comfort and stress relief.

Figure 3: Rocking & Ergonomic C-shaped design. This image shows the chair's ergonomic C-shaped design and its 30° Zero-Gravity Rocking function, allowing for comfortable reclining and stress relief.
Swivel and Mobility
The chair is equipped with silent 360° rotating wheels, allowing for smooth movement across various floor surfaces without scratching. The swivel function enables easy rotation for dynamic use in any space.

Figure 4: Adapts to Your Every Mode. This composite image demonstrates the versatility of the chair, adapting to various activities such as working at a desk, applying makeup, relaxing while listening, and comfortable reading.
Maintenance
Proper care will extend the life and appearance of your Dowinx Criss Cross Chair:
- Cleaning the PU Leather: The premium PU leather is water-resistant and easy to maintain. For general cleaning, wipe the surface with a soft, damp cloth. For spills, wipe immediately with a dry cloth, then clean with a slightly damp cloth and mild soap solution if necessary. Avoid harsh chemicals or abrasive cleaners.
- Caster Maintenance: Periodically check the casters for hair or debris that may impede smooth movement. Clean as needed.
- Hardware Check: Every few months, inspect all screws and bolts to ensure they remain tight. Retighten if necessary to maintain stability.

Figure 5: Luxury PU Leather. This image emphasizes the premium PU leather material, noting its water-resistant, scratch-resistant, and easy-to-maintain qualities, making it suitable for pet owners.
Troubleshooting
If you encounter issues with your chair, consider the following common solutions:
- Chair feels unstable: Ensure all assembly screws are fully tightened. Check that the gas lift is properly seated in both the base and the seat mechanism.
- Chair does not adjust height: Verify that the height adjustment lever is functioning correctly and not obstructed. Ensure the gas lift cylinder is installed properly.
- Casters not rolling smoothly: Inspect casters for any trapped debris, hair, or lint and clean them. Ensure they are securely inserted into the base.
- Squeaking noises: Check and retighten all bolts and screws. A small amount of silicone lubricant can be applied to moving parts if the noise persists, avoiding contact with the PU leather.
Specifications
| Brand | Dowinx |
| Model Name | QL-66H4-02-ca |
| Colour | All Black |
| Material | Faux Leather (Upholstery), Memory Foam (Fill) |
| Product Dimensions (D x W x H) | 67D x 52W x 32H centimetres |
| Item Weight | 18.06 kg |
| Maximum Weight Recommendation | 136.08 kg |
| Special Features | Adjustable Height, Arm Rest, Back Support, Ergonomic, Rolling |
| Back Style | High Back |
| Reclining Position Count | 1 (30° Zero-Gravity Rocking) |
Warranty and Support
For warranty information, product support, or to report any issues, please contact Dowinx customer service. Refer to the contact details provided with your purchase documentation or visit the official Dowinx website. Please have your model number (QL-66H4-02-ca) and purchase date available when contacting support.