Package Included: 4 x Black Shelf Brackets Hidden Triangle Bracket Design The heavy duty corner bracket is only visible at 1 inch height so you can easily hide it between your board and wall. The heavy duty shelf brackets seem to float in the air, making your home more neat and unique. 3mm Galvanized Iron & Support 90lbs. The shelf brackets are made of galvanized iron, 3mm thick floating shelf brackets come with high strength screws and can support 90lbs per pair. The surface is made of high temperature black paint, anti-rust and anti-corrosion, making it more durable. Easy to Install You can easily install the shelves without any special skills. First, use a drill to dig holes in the walls and boards. Then install the screws to fix the anchors. Finally tighten the screws with a screwdriver. Wide Application: With strong load-bearing capacity, it can be widely used in living rooms, bedrooms, kitchens, bathrooms, gardens, tool rooms, etc. For example, fix it on the wall to make it a