HEALTH LINE MASSAGE PRODUCTS Steel Frame BIFMA Standard Brown Set of 2 PU Leather Hydraulic Bar Stool Seat: 12.5"(W) X 15"(D); Seat height: 24"-32"; Seat back height: 8"; Chrome base diameter: 16.2" Steel seat frame BIFMA standard cylinder provide you more safety; Max weight capacity: 330lbs Ergonomic backrest design, 3 inches thick seat pad provide you more comfort Rubber ring bottom design makes the base more stable; prevents your luxurious wood floor from scratching Polyurethane faux leather seat upholstery, water-proof & oil proof, easy to clean We choose steel material to build the seat structure, aiming to provide our customers a more safe sitting suport. The steel frame is more durable than those wooden ones