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)