Our ergonomic vinyl stools adjust to fit most body types and workstations. The upholstered cushion includes highly durable molded polyurethane foam. Additional ergonomic benefits include an adjustable back rest with lumbar support for increased comfort during extended sitting durations. Optional seat tilt provides 8° forward and 3° backward locking tilt for ergonomic posture support. These medium height stools offer over 65 antimicrobial/antibacterial standard and custom vinyl color configurations and feature a black powder-coated steel base with fixed foot ring. Optional casters available and add 2-inches of height to the stool. Each ergonomic stool is backed by our 15-year warranty, lifetime on the pneumatic cylinder.