Premium Material: Door barricade brackets are made of sturdy carbon steel with black powder coating to ensure its stability and wear resistance. Suitable for 2x4 Wood: The security holder bracket for 2x4 lumber(Standard 2x4 lumber is 1.5"x3.5": Lumber is not included ) Upgrade U-shaped Design: U-shaped design plus reinforce sturdy base, can be installed on any exterior door to prevent or delay entry during a home invasion Easy To Install: After finding a suitable location, screw the threshold opening bracket to the door frame or wall. Each small round hole on the long side corresponds to 6 screws, and the large round hole on the short side is a tool hole. To make the installation easier, it is recommended that you punch the holes before installation. Widely Used: The door barricade brackets is suitable for reinforcing barn doors, farmhouse doors, garden doors, sheds, garage doors, backyard doors, fence gates, cellar doors, warehouses and more. Provide durable security for indoor and outdoor use. Built to Protect: The door barricade brackets can be mounted on door frames, walls, etc. to prevent others from entering and add weight. It also prevents others from entering your home through windows that open inward, giving your family and property full security.

HOME MASTER HARDWARE Door Barricade Brackets 2Pcs, Heavy Duty Open Bar Security Holder Bracket, Fits 2 x 4 Lumber for Indoor/Outdoor Door Security Brace Bar (Black)