Kas-H, BIFMA Standard High Back Wider Headrest Best Ergonomic Office Chair

1) High back mesh swivel office chair2) Mesh back + PP with fiber black back frame + 2D headrest with height & angle headrest3) Fabric padded seat with high density foam inside + plastic cover + fixed lumbar support4) Fixed PP with fiber armrest5) 2.5mm thickness butterfly mechanism with tilt & lock function6) BIFMA passed CLASS 3 gaslift7) BIFMA passed 340mm nylon base with BIFMA passed 50mm nylon castors