High back office swivel chair
1）Headrest: 4D breathable mesh, height adjustable,rotation；PA+fiberglass Injection molding accessories
2）Back: new plastic material+fiberglass frame, mesh
3）Lumbar support: PP adjustable lumbar support
4）Armrest: Good quality fixed armrest with new plastic material+fiberglass
5）Cushion: high-density molded foam with plastic bottom shell
6）Mechanism: 3 degree locking and selt-weight tilting,Aluminum alloy + steel plate, durability tested 300,000 times, no noise
7）Gas lift
8）Base:340 mm PP base with BIFMA standard,can stand 1136 kg weight;
9）Castors: 60mm PU casters with BIFMA standard