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Office Stationery£468.81Visit shop Onyx Ergo Posture Chair With Height Adjustable Arms Without Headrest
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The Onyx Ergo Posture Chair is designed for office professionals and remote workers who require high-level ergonomic support during extended sitting sessions. It excels by offering deep customization through its triple-lever mechanism and pump-up lumbar support, ensuring a tailored fit for various body types; however, its complex adjustment system may require a short learning curve for those unfamiliar with asynchronous task chairs.
| Colour | Black |
|---|---|
| Model Part Number | KCUP4071 |
| Brand | Onyx |
It means the seat and backrest move independently of each other, allowing you to set the seat and back angles separately for a personalized fit.
Locate the lever typically found on the side of the seat base, pull it upward to unlock, slide the seat to your preferred depth, and release to lock.
Yes, a standard gas lift is included, controlled by one of the three levers located under the seat.
Yes, the contoured foam and high-quality build are designed for daily professional use, provided weight limits are respected.
There is a manual pump bulb or lever system on the side of the chair; pump it until you feel comfortable pressure against your lower back.
Ensure the ratchet mechanism has clicked into the top position to reset before lowering it again to your desired height.
Operate the pump-up lever repeatedly to build internal air pressure until the desired level of firmness is achieved.
Verify that all base bolts are tight and that you are utilizing the correct lever to lock the asynchronous mechanism in place.
Setup: The chair ships partially disassembled. Ensure all bolts are tightened in a cross-pattern during assembly to ensure the base remains level. Test the levers immediately after assembly while sitting to ensure the gas lift and tension springs are engaged correctly.
Compatibility: This chair is suitable for standard desk heights (approximately 70-75cm). The adjustable backrest and seat depth make it compatible with a wide range of user heights, typically from 5'2" to 6'3".
Care: Clean the black upholstery regularly using a soft brush or vacuum attachment to prevent dust buildup. For spot cleaning, use a damp cloth with mild soap; avoid harsh chemical cleaners which may degrade the foam density or fabric texture. Check and tighten all adjustment bolts every six months to maintain structural integrity.
