See Downloads Tab above for ASI 8204 technical data sheet (.pdf)Compact Padded Rectangular Fold-up Shower Seat has all metal parts fabricated of 18-8 stainless steel, type 304; seat frame and support legs is 1" (25mm) dia. and 1-1/4" (32mm) square x 18 gauge (1.2mm) tubing with 3/16" (4.8mm) thick mounting flanges and 16 gauge (1.5mm) guide bracket/arm support. All exposed surfaces are No4 satin finish. Structural assembly is welded construction and all exposed edges and corners be radiused and/or debarred. Seat is sponge cushion covered with off-white Naugahyde® mounted on 1/2" (13mm) thick marine grade plywood. Support arm folds up when in retracted position to provide low profile against wall. No extra fittings are required to retain seat in storage position. Guide bracket controls seat lowering into operating position. Unit satisfies ADA Accessibility Guidelines when mounted properly.