ORTHOPAEDIC DESIGN: This office chair has an ergonomic and orthopaedic design and is certified for 152 kg weight tolerance and 24-hour daily use. With forward seat tilt & independent back & seat tilt ADJUSTABLE ERGONOMIC OFFICE CHAIR: Alleviate back pain with this chair featuring height and width adjustable arms, ratchet back and a seat that can be tilted. Torsion control knob adapts tilt tension COMFORTABLE OFFICE CHAIR: Work in complete comfort in this high-back office chair that has a thick, moulded seat and back DIMENSIONS: Seat height 43.5 to 52 cm, seat depth 46 cm, seat width 48 cm, back height 54 cm, back width 43 cm MAKE YOUR OFFICE HOME: Office Hippo offers a wide range of office furniture including office desks & office chairs to help make your space as work friendly as possible