Wooden shelf brackets are made of solid galvanized and nickel-plated steel with a matte black powder coating. These wall shelf brackets will not rust or bend, ensuring a long service life. Although they are small metal shelf brackets, they are sturdy brackets. Yeuri hidden shelf brackets are designed to fit into the wall and the shelf. After installation, the hidden shelf brackets cannot be seen. Without the bracket on the outside, the furniture is easy to clean. To hide the small brackets in the wood, use a router (0.5-inch bit) to drill a 5-inch long hole in the board. Make sure your board is thicker than 0.8 inches. Attach the floating shelf brackets with two screw holes and holes in the floating wooden shelves, then the shelf is mounted on the wall. If you use these brackets for decorative shelves, you can save much more space because there are no supports on the outside. So you can install many shelves nearby. These scaffolding brackets have better performance. Decorative shelf brackets are ideal for supporting your floating shelves. The shelf brackets make your shelf furniture look beautiful and fashionable. Specifications: Material: Galvanized solid steel, surface nickel-plated with matte black powder coating Color: Black Size: 128*20*63mm. Package includes: 4 pcs invisible shelf brackets