These industrial polyurethane chairs adjust to fit most body types and workstations. Optional 6 way adjustable arm rests support a variety of arm placements for proper ergonomics. The polyurethane chairs are easily cleaned, making them ideal for almost any environment. Choose from rolling, non-marring casters (suitable for both hard and carpeted floors) non-marring bell glides (suitable for both hard and carpeted floors) on a nylon reinforced fiberglass base. Optional seat tilt provides 8 forward and 3 backward locking tilt for ergonomic posture support. Optional foot rings are in nylon reinforced fiberglass .