Introduction
Thank you for choosing the Okeysen C010-2026 Desk Chair. This manual provides detailed instructions for assembly, operation, maintenance, and troubleshooting to ensure safe and optimal use of your new chair. Please read this manual thoroughly before assembly and retain it for future reference.

Figure 1: Okeysen C010-2026 Desk Chair. This image displays the overall design of the Okeysen C010-2026 desk chair in brown, featuring its wooden armrests and sturdy base.
1. Setup and Assembly
The Okeysen C010-2026 Desk Chair is designed for straightforward assembly. All necessary tools and detailed instructions are included in the packaging. Assembly typically takes approximately 15 minutes.
1.1 Unpacking and Component Check
Carefully unpack all components and compare them with the parts list provided in your package. Ensure all parts are present and undamaged before proceeding with assembly.
1.2 Armrest Assembly
The wooden armrests are detachable, offering flexibility in chair configuration. Attach them securely using the provided hardware. If you prefer an armless chair for more space or to sit cross-legged, the armrests can be omitted during assembly or removed later.

Figure 2: Chair with and without armrests. This image shows the Okeysen C010-2026 desk chair both with its wooden armrests attached and with them removed, illustrating the chair's versatility and ease of customization.
1.3 Base Assembly
Assemble the sturdy no-wheels base according to the instructions. This design ensures stability and prevents the chair from rolling, allowing you to maintain focus.

Figure 3: Key Chair Features. This image highlights the chair's wooden armrests, thick cushion for comfort, and the sturdy no-wheels base designed for stability.
2. Operating Instructions
Your Okeysen C010-2026 Desk Chair offers several adjustable features for personalized comfort and support.
2.1 Seat Height Adjustment
To adjust the seat height, locate the lever under the right side of the seat. While seated, pull the lever up to lower the seat. To raise the seat, stand up slightly and pull the lever up. Release the lever at your desired height to lock it in place. The chair offers a 5.9-inch lift range.
2.2 360-Degree Swivel
The chair features a 360-degree swivel function, allowing for easy movement and interaction within your workspace without needing to reposition the entire chair.

Figure 4: Swivel and Seat Lifting. This graphic demonstrates how to operate the 360-degree swivel function and adjust the seat height using the lever located under the seat.
2.3 Rocking Function and Tension Adjustment
The chair includes a rocking mode with an adjustable tension feature. To engage the rocking mode (90-120 degrees), pull the lever out. To lock the chair in an upright position, push the lever in. The tension of the rocking motion can be increased or decreased by turning the knob located under the seat.

Figure 5: Rocking Instructions. This image explains how to engage the rocking mode (90-120 degrees) by pulling out the lever and how to adjust the rocking tension using the knob.
3. Maintenance and Care
Proper maintenance will extend the life and appearance of your Okeysen C010-2026 Desk Chair.
3.1 Cleaning Instructions
The chair's PU leather surface can be easily cleaned by wiping it with a damp cloth. Avoid using harsh chemicals or abrasive cleaners, as these may damage the material. For spills, blot immediately with a clean, dry cloth.
3.2 General Care
- Regularly check all bolts and screws to ensure they are tight. Retighten if necessary.
- Avoid exposing the chair to direct sunlight for prolonged periods, as this can cause the material to fade or crack.
- Keep sharp objects away from the chair's surface to prevent punctures or tears.
4. Troubleshooting
If you encounter any issues with your Okeysen C010-2026 Desk Chair, please refer to the following common solutions:
- Chair feels wobbly: Ensure all assembly bolts and screws are securely tightened.
- Height adjustment not working: Check if the gas lift lever is fully engaged. If the issue persists, the gas lift mechanism may require inspection or replacement.
- Rocking function not engaging/disengaging: Verify that the rocking lever is correctly pulled out or pushed in. Adjust the tension knob to ensure it is not overtightened or too loose.
For problems not addressed here, please contact Okeysen customer support for assistance.
5. Specifications
Below are the technical specifications for the Okeysen C010-2026 Desk Chair:
| Feature | Specification |
|---|---|
| Brand | Okeysen |
| Model Name | C010-2026 |
| Color | Brown |
| Material | Faux Leather |
| Product Dimensions (D x W x H) | 20.5"D x 19.7"W x 40"H |
| Seat Depth | 18.5 inches |
| Item Weight | 18 pounds |
| Weight Capacity | 330 lbs |
| Back Style | Solid Back |
| Special Features | Adjustable Height, Detachable Arm Rests, 360-degree Swivel, Rocking Function |
| Recommended Uses | Office, Home Office, Study Room |

Figure 6: Chair Dimensions. This diagram illustrates the key dimensions of the Okeysen C010-2026 desk chair, including seat width, seat depth, backrest height, and overall height adjustment range.

Figure 7: Weight Capacity. This image indicates the chair's maximum weight capacity of 330 pounds, highlighting its robust construction and BIFMA compliance.
6. Warranty Information
Specific warranty details for the Okeysen C010-2026 Desk Chair are typically provided at the point of purchase or within the product packaging. Please refer to your purchase documentation or contact the seller/manufacturer directly for comprehensive warranty terms and conditions.
7. Customer Support
For any questions, concerns, or assistance regarding your Okeysen C010-2026 Desk Chair, please contact Okeysen customer service. Refer to your purchase receipt or the Okeysen official website for contact information.