MATERIALS:FDA approved blow-molded high-density polyethylene. Reinforced full-length steel-on-steelhinge mechanism, with 11-gauge steel mounting plates and mounting hardware included.Molded in graphics and safety messages in six languages and Braille. Contoured changingsurface area is 442 sq in (2873 sq mm) and comes complete with nylon safety straps andbag hooks.OPERATION:Concealed pneumatic cylinder and hinge structure provides controlled, slow opening andclosing of bed. High-density polyethylene is easy to clean and resists odors and bacterialgrowth. Complies with ASTM static load performance requirements when properly installed.Rated to support a static load of 300 pounds (136 kilos); tested to 400 pounds (182 kilos).Molded-in liner dispenser holds approximately 25 KB150-99 sanitary liners.Warning: To insure that the unit supports the intended loads, baby changing stations mustbe properly installed according to the manufacturers instructions.