Our ergonomic basic industrial polyurethane chairs adjust to fit most body types and workstations. Optional 2-way adjustable arm rests support a variety of arm placements for proper ergonomics. Our polyurethane chairs are easily cleaned, making them ideal for almost any environment. Choose from black rolling, non-marring casters (suitable for both hard and carpeted floors) or black, non-marring bell glides (suitable for both hard and carpeted floors) on a nylon reinforced fiberglass base. Foot rings are available in 18 1/4-inch diameter black nylon reinforced fiberglass or 20-inch diameter chrome. Each ergonomic polyurethane chair is backed by our 15-year warranty, lifetime on the pneumatic lift.