About this item Comfortable Chair with Ergonomic Lumbar Support. Ideal for people having height below 5ft 8 inches. Internal Frame Material: Glass Filled Nylon Structure with Breathable mesh | Color: Black | Seat : Molded with 45 density | Size: Mid Back Arms: Nylon Arms | Mechanism : Heavy Duty Center tilt Mechanism | Gas-lift : Class 4 (Pneumatic seat height adjustment, BIFMA Certified) | Base: Glass Filled Nylon Base | Castors: 60mm Nylon Wheels.360 deg swivel Maximum Weight Load Capacity :120 kgs. Assembly Required: The product requires basic assembly and comes with assembly instructions.