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)