Introduction
Thank you for choosing the Mimoglad Office Chair. This high-back ergonomic desk chair is designed to provide superior comfort and support for extended periods of sitting, whether for work, gaming, or relaxation. Featuring adjustable lumbar support, a customizable headrest, and flip-up armrests, this chair adapts to your individual needs. Please read this manual carefully before assembly and use to ensure proper function and longevity of your chair.
Safety Information
For your safety and to ensure the proper functioning of your Mimoglad Office Chair, please observe the following:
- Ensure the chair's adjustable lumbar support and reclining mechanism are used properly.
- Do not exceed the maximum weight recommendation of 300 pounds for safe use.
- Keep all small parts and packaging materials away from children.
- Periodically check all screws and connections to ensure they remain tight.
- Do not stand on the chair or use it as a step stool.
Package Contents
Before beginning assembly, please verify that all components are present and undamaged. If any parts are missing or damaged, please contact Mimoglad customer support.
- Chair Backrest with Mesh
- Seat Cushion with Armrests (pre-attached)
- Headrest
- Five-Star Base
- Casters (5 pieces)
- Gas Lift Cylinder
- Mechanism Plate
- Hardware Pack (screws, washers, Allen wrench)
Setup and Assembly
Assembly of your Mimoglad Office Chair is designed to be straightforward and typically takes approximately 20 minutes. All necessary tools are included.
- Attach Casters to Base: Insert each of the five casters into the holes at the end of each leg of the five-star base until they click securely into place.
- Insert Gas Lift: Place the gas lift cylinder into the center hole of the five-star base. Ensure it is firmly seated.
- Attach Mechanism Plate to Seat: Align the mechanism plate with the pre-drilled holes on the underside of the seat cushion. Secure it using the provided screws and the Allen wrench. Ensure the front of the mechanism faces the front of the seat.
- Connect Seat to Gas Lift: Carefully place the assembled seat (with mechanism) onto the top of the gas lift cylinder. Press down firmly to secure.
- Attach Backrest to Seat: Align the backrest with the mounting points on the rear of the seat cushion. Secure with the provided screws.
- Install Headrest: Slide the headrest into the designated slot at the top of the backrest. Adjust to your preferred height.

Figure 1: Exploded view of Mimoglad Office Chair components and assembly sequence.
Operating Instructions and Adjustments
Your Mimoglad Office Chair offers several adjustable features to customize your seating experience for optimal comfort and ergonomic support.
1. Seat Height Adjustment
To adjust the seat height, locate the lever on the right side, beneath the seat. While seated, pull the lever upwards to lower the seat. To raise the seat, stand up and pull the lever upwards. Release the lever at your desired height.

Figure 2: The chair features a high-quality gas lift for smooth height adjustments.
2. Adjustable Lumbar Support
The lumbar support is designed to contour specifically to your lower back shape, promoting a natural S-curve of the spine. The adjustable mechanism allows you to move the lumbar support up or down by 2 inches to find the perfect position that minimizes strain on your lumbar discs.

Figure 3: Ergonomic lumbar support with 2-inch vertical adjustment.

Figure 4: Lumbar support designed to adapt to your back's natural curves.
3. Adjustable Headrest
The headrest can be adjusted vertically by 1.2 inches to provide optimal neck and head support, preventing you from hunching forward and scrunching your shoulders. This helps maintain proper posture and reduces fatigue.

Figure 5: Headrest with adjustable height for personalized support.

Figure 6: The headrest helps maintain proper head and neck alignment.
4. Rocking Function and Recline
The chair features a rocking function that allows for gentle movement, improving circulation and reducing fatigue. You can tilt and rock the backrest from 90° to 135° for various activities like working, relaxing, or napping. Use the recline control lever to engage or disengage the rocking function and adjust the tension device for desired resistance.

Figure 7: Rocking system with recline control and tension adjustment.

Figure 8: The rocking backrest provides comfort and promotes movement.
5. Flip-Up Armrests
The armrests can be flipped up, allowing you to slide the chair neatly under a desk or in tight corners, saving space. This feature is particularly useful for musicians, artists, or anyone who requires flexibility in their workspace.

Figure 9: Flip-up armrests offer flexibility and space efficiency.
6. Swivel Function and Wheels
The chair features a 360-degree swivel function for easy movement and access to your workspace. The sturdy construction and quiet-rolling casters are designed for smooth movement across various floor types, including carpet, hardwood, and tile.

Figure 10: The chair offers full 360-degree swivel for ease of use.

Figure 11: Smooth-rolling casters suitable for multiple floor types.
Maintenance
Proper care and maintenance will extend the life of your Mimoglad Office Chair.
- Cleaning: Wipe clean with a soft, damp cloth. Avoid using harsh chemicals or abrasive cleaners, as they may damage the chair's materials.
- Regular Inspection: Periodically check all screws and bolts to ensure they are tight. Re-tighten if necessary to maintain stability and safety.
- Caster Care: Keep the casters free of hair, dust, and debris to ensure smooth rolling. You may occasionally need to remove the casters and clean the axles.
- Fabric Care: For the mesh backrest and fabric seat, spot clean with a mild detergent and water solution if needed. Test on an inconspicuous area first.
Troubleshooting
If you encounter any issues with your Mimoglad Office Chair, please refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Chair does not adjust height | Gas lift cylinder is faulty or not properly installed. | Ensure the gas lift is fully inserted into the base and mechanism. If the issue persists, the gas lift may need replacement. Contact support. |
| Chair is wobbly or unstable | Loose screws or improper assembly. | Check all screws connecting the seat, backrest, and mechanism. Re-tighten them securely. Ensure the base and casters are properly attached. |
| Casters do not roll smoothly | Debris (hair, dust) caught in casters or damaged casters. | Turn the chair over and remove any debris from the casters. If casters are damaged, they may need to be replaced. |
| Backrest does not recline or lock | Recline lever or tension knob not properly adjusted. | Ensure the recline lever is in the correct position. Adjust the tension knob (usually a large round knob under the seat) to increase or decrease resistance. |
If these solutions do not resolve the issue, please contact Mimoglad customer support for further assistance.
Product Specifications
| Feature | Detail |
|---|---|
| Brand | Mimoglad |
| Model Name | Home Office Desk Chair (OC-5188H) |
| Color | Tiffany Blue |
| Product Dimensions | 16.53"D x 19.68"W x 50.78"H |
| Maximum Weight Recommendation | 300 Pounds |
| Material (Fill) | Foam |
| Back Style | Solid Back (Mesh) |
| Special Features | Adjustable Headrest, Adjustable Height, Adjustable Lumbar, Ergonomic, Flip-up Armrests, Rocking Function |
| Certifications | SGS & BIFMA PASSED |
| Item Weight | 28 pounds |
| UPC | 710715370359 |

Figure 12: Detailed dimensions and weight capacity of the chair.
Warranty and Support
Mimoglad is committed to providing high-quality products and excellent customer service.
- Quality Assurance: Every chair undergoes meticulous quality assessment.
- 5-Year Warranty: We prioritize superior quality. Enjoy peace of mind with a 90-day return policy and a 5-year warranty service.
- Dedicated Support: We value your satisfaction. Reach out to us anytime, and our responsive team will promptly assist you within 24 hours.
For any inquiries, support, or warranty claims, please contact Mimoglad customer service through the retailer's platform or visit the official Mimoglad store page.

Figure 13: Mimoglad's commitment to quality and customer support.