The DS2000 Drafting Stools by KFI are perfect for teachers, school labs, offices or anywhere task seating is needed. The seat and back are constructed of high impact polypropylene and the frame is constructed of heavy-duty 15-gauge cold-rolled tubular steel. Pneumatic seat adjustment allows the seat to adjust from 23.5 to 33.5. Dual wheel hooded casters on a black nylon five star base add easy mobility to any task. Options include a set of arm rests or a set of 5 glides to replace casters and create a stationary seat.