【Sturdy and Durable】The invisible shelf brackets are made of solid galvanized and nickel-plated steel with a matte black powder-coated finish. These wall-mounted shelf brackets will not rust or bend, ensuring a long service life. Although they are small metal shelf brackets, they are sturdy brackets, which can support shelves weighing up to 80 pounds. 【Invisible and Hidden】The 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. 【Easy to Install】To hide the metal shelf brackets in the wood, please use a router (0.5 inch bit) to drill a 5 inch long hole on the board. Make sure your board is thicker than 0.8 inch. Fix the floating shelf brackets 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 floating brackets, they can save much more space since