The HOMCOM Backless Wobble Chair is designed to support active sitting by encouraging balance, movement, and better posture while you work or study. Its compact, backless design makes it suitable for desks, standing workstations, and everyday seated tasks where stability and controlled motion matter.

The following assembly instructions explain how to correctly put together the HOMCOM Backless Wobble Chair using the included parts and proper sequence. Each step is simple, tool-free, and focused on ensuring the chair is stable, secure, and ready for safe use.
Important Notes Before You Start
- Lay all parts on the floor and compare them with the parts table
- Do not sit on the chair until all assembly steps are completed
- The protective plastic cap on the hydraulic cylinder must be removed before assembly
- Ensure the base is placed on a flat surface during assembly
- Press-fit connections require firm, straight downward pressure
Note: No tools are required to assemble the HOMCOM Backless Wobble Chair.
Parts

| Part No | Part Name | Description | Function / Notes |
| ① | Base Weight | Wide, round bottom component | Acts as the foundation of the chair |
| ② | Hydraulic Cylinder (Gas Lift Rod) | Adjustable vertical metal rod | Controls height adjustment and connects the base to the seat. |
| ③ | Seat | Padded, round seat surface | Provides seating comfort and presses directly onto the hydraulic cylinder. |
| ④ | Cylinder Cover | Tapered outer sleeve | to hide the metal rod and improve the overall appearance |
Step-by-Step Assembly Instructions
Follow these step-by-step instructions to assemble the HOMCOM Backless Wobble Chair (SKU:921-782V00RD) using the correct parts and sequence.
Step 1: Attach the Cylinder Cover to the Seat

- Place the seat (Part ③) upside down on a flat, stable surface
- Align the cylinder cover (Part ④) with the center opening on the underside of the seat
- Insert the wider end of the cylinder cover into the seat opening
- Twist gently until it sits securely in place
⚠️ Do not insert the hydraulic cylinder at this stage
Step 2: Remove the Protective Cap

- Locate the plastic protective cap on top of the hydraulic cylinder (②)
- Pull the cap off completely by hand
- Discard the cap before continuing
⚠️ Important: This cap must be removed for the hydraulic cylinder to work properly and allow correct seat installation.
Step 3: Insert the Hydraulic Cylinder into the Base

- Hold the hydraulic cylinder (②) upright with the wider end facing downward
- Insert it into the centre opening of the base weight (①)
- Press down firmly until the cylinder sits securely in place
- The cylinder will self-lock without the use of tools
Step 4: Attach the Seat

- Align the opening underneath the Seat (③) with the top of the hydraulic cylinder (②)
- Press the seat straight down onto the cylinder
- Apply firm, even pressure until the seat is fully seated
Step 5: Final Positioning

- Ensure the cylinder cover slides down neatly over the cylinder
- Check that all parts are aligned and stable
The chair should now stand balanced and ready for use.
Assembly Check (Before Use)
Confirm the following:
- Seat is firmly attached
- Base sits flat on the floor
- Cylinder cover is properly positioned
- Chair wobbles smoothly without tipping
If anything feels loose, re-press the seat onto the cylinder.
Safety & Usage Notes
- Use only on flat, stable surfaces
- Do not stand on the chair
- Avoid leaning excessively to one side
- Suitable for active sitting, not as a step stool
Maintenance Tips
- Wipe with a dry or slightly damp cloth
- Do not use harsh cleaners on the seat fabric
- Periodically check that the seat remains firmly attached
You can download the full HOMCOM Backless Wobble Chair (SKU:921-782V00RD) assembly manual for reference.
If you need technical support, replacement parts, or have any product-related questions, contact Aosom Customer Service for friendly and reliable assistance.
FAQs
The HOMCOM Backless Wobble Chair supports a maximum recommended weight of 265 lbs. This limit ensures stable performance, proper wobble control, and long-term durability. Staying within the recommended weight helps maintain balance, safety, and overall product lifespan during daily use.
The base is made with anti-slip nylon material that helps grip the floor surface. This reduces sliding and keeps the chair stable during use. It works well on common indoor flooring types.
The wobble motion stays controlled on both carpet and hard floors. Movement may feel slightly firmer on carpet due to added resistance, while smooth floors allow easier motion. In both cases, balance and stability are maintained.
This chair is ideal for people who want active sitting, including office workers, students, or standing desk users. It encourages light movement while seated, which can support posture and core engagement. It’s best suited for work-focused seating rather than relaxation.
