Surgeons Stool with Castors C/w Cushion - can take a weight limit of 130kg Base: 5 star Aluminium Teflon coated finish which is Ultra Clean and Wear Resistant. 585mm diameter. Top: Polished Stainless steel Height range: 480mm - 680mm Castors : 65mm Twin Wheel Polyurethane Tyred Non-Corrosive Castors Seat: 380 mm Pressure Care Pad Anti Static Backrest : Adjustable, Polished stainless Steel with Anti static Pad Arm rest: Polished stainless steel with anti Static pad