1. Introduction
This manual provides essential information for the assembly, operation, and maintenance of your amseatec LY-8267-BLK Criss Cross Office Chair. Please read these instructions carefully before use to ensure proper function and longevity of your product.

Figure 1: amseatec LY-8267-BLK Criss Cross Office Chair.
2. Safety Information
Adherence to the following safety guidelines is crucial for preventing injury and damage to the product.
- Do not exceed the maximum weight recommendation of 300 pounds (136 kg).
- Keep the chair indoors for optimal performance and safety.
- Ensure all components are securely fastened before use. Regularly check and tighten fasteners as needed.
- Avoid standing on the chair or using it as a step stool.
- Keep children and pets away from the chair during assembly.
3. Package Contents
Verify that all components are present before beginning assembly. If any parts are missing or damaged, contact customer support.
- Chair Backrest
- Seat Cushion
- 5-position Adjustable Armrests (2)
- Power Gas Lift
- Star Base with Wheels
- Assembly Hardware (screws, washers, tools)
- Assembly Instructions
4. Assembly Instructions
The amseatec Criss Cross Office Chair is designed for quick and easy assembly. Detailed, step-by-step instructions with illustrations are included in the product packaging. All necessary parts and tools are provided.
- Unpack all components and verify against the package contents list.
- Attach the wheels to the star base.
- Insert the gas lift into the center of the star base.
- Secure the armrests to the seat cushion and backrest using the provided hardware.
- Place the assembled seat and backrest onto the gas lift.
- Ensure all connections are tight and stable before use.
5. Operating Instructions
Your amseatec Criss Cross Office Chair offers several adjustable features for personalized comfort.
5.1. Adjustable Armrests
The chair features 5-gear adjustable armrests, allowing you to customize their position for various sitting styles, including cross-legged sitting. The armrests can be adjusted from 90° to 180° (flat).

Figure 2: Armrest adjustment mechanism.
5.2. Adjustable Height
Use the lever located under the seat on the right side to adjust the chair's height. 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.
5.3. Swivel Function
The chair is equipped with a 360-degree swivel function, allowing for easy rotation and movement.
5.4. Rocking and Tilt Function
The chair includes a rocking function and a resistance knob for tilt control. The rocking function can be engaged or disengaged using the lever under the seat. The resistance knob, typically located at the front under the seat, allows you to adjust the tension of the rocking motion.

Figure 3: Rocking function lever and resistance knob.
5.5. Versatile Seating Positions
The chair's design, including its wide seat and adjustable armrests, supports various seating positions, such as sitting cross-legged, lounging, or working at a desk.

Figure 4: Example of cross-legged seating with a pet.
6. Maintenance
Proper care will extend the life and appearance of your chair.
- Cleaning: The premium PU leather cover is waterproof and easy to clean. Wipe clean with a damp cloth. Avoid harsh chemicals or abrasive cleaners.
- Scratch Resistance: The PU leather is designed to be cat scratch resistant. However, extreme force or sharp objects may still cause damage.
- Regular Checks: Periodically inspect all screws and bolts to ensure they are tight. Re-tighten as necessary.

Figure 5: Maintenance and comfort features.
7. Troubleshooting
If you encounter any issues with your amseatec Criss Cross Office Chair, please refer to the following common solutions or contact customer support.
- Chair feels wobbly: Ensure all assembly screws are fully tightened. Check that the gas lift is properly seated in the base.
- Height adjustment not working: Verify that the gas lift lever is fully engaged or disengaged. Ensure no obstructions are preventing the gas lift from moving freely.
- Wheels not rolling smoothly: Check for any debris (hair, dust) caught in the wheels. Clean as necessary.
For further assistance, please contact amseatec customer support.
8. Specifications
| Feature | Detail |
|---|---|
| Brand | amseatec |
| Model Name | LY-8267-BLK |
| Color | Black |
| Product Dimensions | 27.2"D x 32.7"W x 36.5"H |
| Maximum Weight Recommendation | 300 Pounds (136 kg) |
| Material | Premium PU Leather, High-density Supportive Foam |
| Arm Style | 5-position Adjustable, Fully Wrapped Armrests |
| Special Features | Adjustable Height, Swivel, Rocking Function, Pet Friendly, Wear-resistant |
| Recommended Uses | Gaming, Office, Reading, Relaxing |
| Item Weight | 40.8 pounds (18.5 kg) |
| Indoor/Outdoor Usage | Indoor |

Figure 6: Product Dimensions.
9. Warranty and Support
amseatec is committed to product quality and customer satisfaction.
- Warranty: This product is covered by a 5-year warranty. Please retain your proof of purchase for warranty claims.
- Customer Support: For any questions, concerns, or support needs, please contact amseatec customer service. 24/7 text support is available.