Ergonomic kneeling chair with black polyacrylic upholstery on the seat and knee-rest, and a steel frame on twin-wheel castors. When you sit on a kneeling chair your back is automatically placed in a position where it naturally adopts the ideal s-shape of a balanced healthy spine. The sitting position is active and can help you avoid back pain. Ideal for light computer use at home or in the office. (No more than 3 hours per day.) CHAIR STABILITY Stability is provided by the solid steel base with easy-roll castors. SEAT HEIGHT ADJUSTMENT Seat height and angle are adjustable via a ratchet system. CHAIR SIZE Knee Cush Depth = 19.5cm Knee Cush Width = 45cm Seat Width = 39cm Seat Depth = 29cm Seat Height = 43 - 67cm Overall Width = 44cm THE CHELLGROVE ADVANTAGE • Clear Pricing • Free Next-Day Delivery • Free Money-Back Guarantee • Click here for details FEATURES: Padded Seat and Knee-rest, upholstered in polyacrylic fabric for durability Steel frame with twin-wheel castors Naturally assures correct sitting position for users with some types of back problem Angle and height adjustment for maximum comfort Move smoothly on the steel base with easy-roll castors Ideal for light office use in the workplace or at home (up to 3 hrs per day) Weight rated to 200lbs (90kg) Colours: black only Some simple self-assembly is required. GUARANTEE: Teknik one-year mechanical parts replacement warranty (excluding foam and fabric, wear and tear). The manufacturer reserves the right to modify and improve the product without notice. QUALITY CONTROL: All foams used are combustion-modified fire-retardant. Flammability conforms to: BS EN 1021-1 1994 (cigarette) BS EN 1021-2 1994 (match) BS 5852 Part 1 Ignition Sources 0 & 1 BS 7176 1995 Low Hazard Free Delivery (1 - 2 working days) - Or tell us what day you want it!