"1) High back new model swivel mesh office chair 2) Mesh back + PP with fiber back frame + 2D headrest with height & angle adjustable + height adjustable lumbar support 3) Fabric padded seat with injection molded foam + plastic cover 4) Fixed PP with fiber armrest 5) Multi-function mechanism with back reclining & one position locking function 6) BIFMA passed CLASS 3 gaslift 7) BIFMA passed 340mm nylon base & BIFMA passed 50MM nylon & PU castors"