Picture hanger set includes: (4) heavy-duty molded resin hangers and steel hardware (nails, screws) for each, 100 lb. load capacity. A-Maze-Ing picture-mounting kit is ideal for hanging artwork and heavy mirrors on the wall. Maze configuration of hanger prevents artwork/mirror hanging wire (not included) from inadvertently slipping from hanger, earthquake or otherwise. Load capacity is based on secure mounting of hanger(s) to wall stud using either nail or screw provided.