The Whiteside HRAS3NM Steel Mechanic Seat comes with 3 extra spare wheels is a high-quality, single item product designed for mechanics and automotive professionals. Standing at 22" tall and featuring four wheels for easy mobility, this roller seat provides comfort and convenience during long hours of work. Manufactured by Whiteside Machine Company, this seat is built to last and withstand the demands of a professional workshop or garage. With a California Prop 65 warning for cancer and reproductive harm, this mechanic seat prioritizes safety and health in its design.