* Black back frame/net seat PA+25% glass fiber
* Ergonomic full mesh chair, up and down adjustable lumbar support
* 3D lifting handrail/PU surface (lifting, rotating, front and rear)
* Taiwan Yichang Internet, original locking chassis
* Yuechang (Xieqiang) Grade IV black air pressure rod passed SGS certification
* 340 # black nylon five-star pin, Φ 60 black PU wheel passed SGS certification