The door anti-theft strip is made of high-quality steel material with industrial grade black coating. The black powder coating is electroplated and has a smooth surface that is not easily deformed.The thickened high-strength hardened steel pole frame bracket design can absorb high kicking or pushing forces, ensuring that the door obstacle safety pole is strong enough to achieve higher defense.You will receive 2 U-shaped door obstacle brackets and 6 installation screws with plastic anchor bolts, or 4 U-shaped door obstacle brackets and 12 installation screws with plastic anchor bolts, which are easy to install and help improve home safety and prevent intrusion.This barrier bracket can be used for doors of any width. Within a few minutes, your home will be safer. Simple drilling is required, and each opening rod bracket has tool holes for easy access by toolsHeavy duty brackets are suitable for reinforcing barns, gates, garages, houses, backyard doors, and other types of doors, designed specifically for 2x4 standard wooden boards.