1)Headrest: nylon frame+double mesh, back&front adjustable, no height adjustable
2)Back: nylon+fiberglass frame, double mesh
3)Lumbar support: nylon, height adjustable
4)Armrest: fixed PP armrest
5)Cushion: Californian fireproof high-density molded foam, 12mm plywood inside, elastic cloth cover
6)Mechanism: Single degree locking system
7)Class 3 gas lift
8)Base: High quality 340mm five star nylon feet
9)Castors: 60mm PU wheel (black)