The shelf brackets are made from high quality steel and are black coated for durability. The shelf brackets come with free mounting hardware, so installation is quick and easy. The surface coating: Bright surface corrosion resistance of the lacquer that bake is strong The versatile shelf brackets can hold up to 50-75kg. per pair. Triangular construction with stable right angles for easy leveling and freedom from wobble. Shelf brackets can be used as book shelves, kitchen shelves, display shelves, garden shelves, exterior wall brackets and more. Packaging: 2pc, no screws, Manufacturer: Shun Yingtong