1. The ergonomically perforated backrest is made of white/black polyamide plastic.

2. Come with armrest adjustable for height, made of black polypropylene (100% recyclable).An option armless.
3. The seat consists of moulded polyurethane foam on a 2-piece shell structure, injection-moulded in back polypropylene. Seat height is adjustable by means of a pneumatic gas spring.
4. SGS approval 3 class gas spring with safe, stable, durable. An optional 4 class gas spring.
5. The black metal tubes in the lumbar area vertical and horizontal radians provide backrest support, which for greater comfort for the users back.An option soft pad,option white metal tube.
6. A weight-sensing mechanism auto-adjust reclines resistance according to user weight. The recline free-range is also adjusted from 0°-15°.
7. 310mm five-prong base of nylon (100% recyclable). 50mm, dual-wheel castors of moulded polyamide (nylon).

Pneumatic seat height adjustment.
Moves the seat up and down to adapt to various body heights.
360-degree swivel.
Provides freedom of movement in any direction.
Tilt lock allows the user to lock out the tilt function.