4Pcs Floating Shelf Bracket, Metal Invisible Shelf Bracket, Heavy Duty Hidden Shelf Bracket Sturdy and Durable Wooden shelf brackets are made of solid galvanized and nickel coated steel with a matte black powder coat finish. These shelf wall brackets won't rust or bend, ensuring a long lifeof life. Although they are small metal shelf brackets, they are sturdy brackets, which can support shelves weighing up to 80 lbs.Invisible and Hidden Hidden shelf brackets are designed to fit into the wall and into the shelf. After assembly, the hidden shelf brackets cannot be seen. Without the support on the outside, the furniture is easy to clean.Easy to Install To hide the small brackets in the wood, please use a router bit (0.5 inch bit) to drill a 5 inch long hole on the board. Make sure your board is thicker than 0.8 inches. Fix the bracketsof floating shelves by two screw holes and holes in the wooden floating shelves, then the shelf is mounted on the wall.Save space If you use these decorative shelf brackets, they can save you much more space since there are no brackets outside. So you can install many shelves nearby.Wide Application These scaffold plank brackets have better performance. Decorative shelf brackets are ideal for supporting your floating shelves. Shelf brackets make your shelf furniture look pretty and fashionable.