This hardware is for barn style wood sliding doors. It"s made of made of stainless steel 304, can hold 150 lbs in weight and 35mm thick, and it"s space saving. Takes minutes to assemble and install.FEATURES: Stainless steel design; One (1) 79" rail - 1" diameter; Five (5) wall hangers; Two (2) door rollers; Two (2) door stops; One (1) floor Guide; One (1) door handle (for 35mm thick wood door); HardwareSPECIFICATIONS: Max weight capacity: 150 lbs; Max door thickness: 35 mm