1) mesh back and fabric seat
2) height adjustment headrest
3) PP strong chair frame
4) height,forward and backward adjustment lumbar support
5) adjustable armrest with PU pad which can have 5 levels for height adjustment
4) up-down & 3 levels back tilting adjustable Mechanism.
5) 350 aluminum base
6) PA footrest with high density foam
7) Slient PU castors which not hurt for floor