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Office Stationery£481.73Visit shop Onyx Ergo Posture Chair With Height Adjustable Arms With Headrest
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The Onyx Ergonomic Posture Chair in purple is designed for professionals and home office workers who prioritize long-term comfort and spinal alignment during extended periods of seated work. Its standout benefit is the highly customizable triple-lever mechanism that allows users to fine-tune seat and back angles to their specific anatomy, though users should note that the assembly requires a degree of mechanical patience to ensure all levers are correctly aligned.
| Colour | Purple |
|---|---|
| Model Part Number | KCUP0424 |
| Brand | Onyx |
This model focuses on posture-specific adjustments; please verify if your specific unit includes the optional armrest accessory kit.
The chair is built with a heavy-duty frame designed to support standard office use up to 120kg.
Yes, the multi-function mechanism allows you to lock the back angle at various intervals between 1 and 20 degrees.
Locate the lever under the right side of the seat pan; lift it to release the lock and slide the seat to your desired depth.
The fabric is a high-durability upholstery; it is best cleaned by spot-treating with a mild upholstery shampoo and a soft cloth.
Check that all bolts connecting the seat mechanism to the chair base are fully tightened.
Check the air valve connection point to ensure it is fully sealed; if air loss persists, ensure the pump bulb is not obstructed.
Ensure the ratchet mechanism is fully disengaged before attempting to lift the backrest to its highest point to reset the track.
To assemble the chair, ensure you are working on a soft surface to avoid scratching the base. Attach the casters to the base first, then connect the gas lift cylinder to the seat mechanism. Ensure all bolts are tightened securely during the initial setup to prevent wobbling. For long-term care, vacuum the upholstery regularly to remove dust, and wipe the frame with a damp cloth. Avoid using harsh chemical cleaners on the fabric, as this may compromise the foam density over time. Check the tension of the adjustment levers every six months to ensure they remain responsive.
