Back Type : High Back Back Upholstery : Air Ventilative Korean Mesh Headrest : 6 Way Adjustable Headrest Armrest : 2D Adjustable Armrest Functionality : Up/Down, Front/Back Seat Cushion : 40 Density Premium PU Padded Molded Cushion Seat Fabric : Perforated Sponge Mesh Mechanism : Swivel Tilt Mechanism Tilt Type : Swivel Tilt Type Mechanism Lock Type : Up Right Locking System Gaslift : BIFMA Certified Gaslift Base : Solid Steel Base (800 KG Tested) Wheel : Nylon Wheels Ideal User's Height Reference : 5'4"-6'0" Ideal User's Weight Reference : 50-100kg