The Canvas 1-Hole D-Ring hangers are the only ones specially designed for canvas and open back frames. The D-rings are hidden, so the picture never leans off the wall and the hardware isn't exposed. These super strong hangers are also perfect for wall décor accessories such as mirrors. Details: Antique brass finish Holds objects weighing up to 25 lb Zinc alloy No studs or anchors needed Contents: Flat mount sawtooth hook Nail 2 screws 2 D-rings 9 ft. galvanized wire