Description These shelf supports are connection accessories commonly used by furniture partition fixing, which are made of Pp and iron material, not easy to break and wear, can be used for a long time. Easy to install with drill (not included),create more space of wall for storage or display in any room. Features -Color:Light Brown -Material:PP, iron -Size:22.00X1.40X1.40cm,21.50X1.20X1.20cm,19.00X1.00X1.00cm,17.20X1.00X1.00cm/8.65X0.55X0.55in,8.45X0.47X0.47in,7.47X0.39X0.39in,6.76X0.39X0.39in -With iron and pp plastic, floating shelf bracket allows shelves to be sturdy and stable on the wall, wont bend or break . - Easy to operate and install, sturdy and strong, not easy to rust, break and wear. - Easy for installation: drill a hole in bracket and drill a hole on wall, mount the bracket to the wall. - It is very convenient and you can change the partition of the closet or shelves at any time. - The brackets will hide inside the shelf, and your shelf will be floating, creating a beautiful and elegant modern look to your home.Package list: 4 x hidden shelf brackets (4 sizes) 4 x expansion tubes 4 x screw gaskets 4 x washers