Mason-H, Modern Office Chair High Back Ergonomic Chair Executive Chair

1) High back ergonomic swivel office chair + height adjustable headrest with cloth hanger2) Black color nylon with fiber back frame with patent + 4 positions height adjustable lumbar support (Backrest strength test passed 135KGS)3) Black color 3D armrest with black color soft PU armpad4) Fabric padded seat with injection molded foam inside + black color plastic cover5) Multi-functional mechanism with back reclining & 3 postions locking function6) BIFMA passed CLASS 3 black color gaslift7) 350mm black nylon base with BIFMA passed 60mm PU nylon castors