【High-quality material】Made of high-quality cold-rolled steel, the surface is matte black, smooth edges, sturdy, corrosion-resistant, rust-proof, not easy to break and fade, long service life. 【Practical design】Easy to install U-shaped door bracket, wide and deep, making these anti-theft door brackets easy to install on the door, extra thick metal to reinforce the door and home security. 【Easy to install】The accessories for the steel protective fence door bracket contain screws. It can be easily installed directly with screws, is easy to assemble, and provides excellent security for entrance doors and windows, barns, sheds, etc. 【Wide range of applications】U-shaped door brackets are suitable for 2 x 4 wood and can be installed on doors to secure garage doors, entrance doors, cellar doors, barn doors, lock escutcheons, chicken coop doors, garden doors, sheds and warehouses, fences, grilles, etc. 【Scope of delivery】You will receive 2 U-shaped brackets, 6 expansion tubes and 6 screws.