Sturdy and Durable Wood shelf brackets are made of solid galvanized and nickel-coated steel with a matte black powder coat finish. These shelf wall brackets resist rust and bending, ensuring a long service life. Despite their compact size, these metal shelf brackets can support shelves up to 80 pounds.Invisible and Hidden Hidden shelf brackets are designed to fit inside the wall and within the shelf. Once installed, the brackets are not visible. With no external brackets, the shelf is easy to clean and provides a sleek, minimalist appearance.Easy to Install To install the hidden brackets, use a 0.5-inch router bit to cut a 5-inch-long hole in the board. Ensure the board is at least 0.8 inches thick. Secure the floating shelf brackets using the two screw holes and attach them inside the wooden shelf, then mount the shelf on the wall.Save Space These shelf brackets help maximize space by eliminating external supports. This allows multiple shelves to be installed close together without clutter.Wide Application These shelf brackets offer reliable performance. Ideal for supporting floating shelves, they enhance the look of shelving furniture, creating a clean, modern, and stylish appearance.