These 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. These polyurethane chairs are easily cleaned, making them ideal for almost any environment. These desk height chairs feature a powder-coated steel base with fixed foot ring. Optional casters and add height to the chair. Optional seat tilt provides 8 forward and 3 backward locking tilt for ergonomic posture support.