This drafting stool is part of the Olson seating series from HON and is an excellent seating solution for labs, schools, industrial or medical environments. Features include a contemporary designed easy to clean and maintain polymer seat shell with partially exposed solid steel frame, pneumatic seat-height adjustment, adjustable height foot ring, 360-degree swivel and a five star base with dual wheel casters. Meets or exceeds ANSI/BIFMA standards. Dimensions: Seat Size: 18"W x 18"D. Back Size: 20"W x 15.5"H. Seat Height Adjustment: 20.37" to 30.5". Foot ring Adjustment: 7.12" to 12.75". Overall: 46"H x 26.5"W x 26.5"D. Limited lifetime warranty from HON. These HON Olson series lab stools ship in 1 business day from one of our 30+ local warehouses.