HangZ™ 25lb. Canvas Flat Mount Wire 1 Hole D Ring is perfect for mounting canvas and open back frames. It is the only 1-hole D ring hanger on the market that is completely hidden and can hold up to 25lbs. HangZ is known for its one-piece zinc alloy construction, making it the world's strongest picture hooks. With this product, you can keep your canvas, pictures, and mirrors flat on the wall without any exposed hooks or hardware. It also features an antique brass finish, which adds a decorative touch.