Feature: 1. Door Compatibility: Specifically designed for standard 2x4 board for door fortification and home safety (lumber not included), suitable for any door width and all types of inward or outward opening doors. 2. Steel Construction: Each door bar bracket is made of carbon steel, powder coated for rust resistance, and the 4mm high strength steel can absorb high kicking or pushing force without any plastic deformation. 3. U Shape Design: The U shape design, reinforced with a sturdy base, can be installed on any exterior door to prevent or delay entry, ensuring your home safety. 4. Wide Applications: This door security bar bracket provides security for all types of interior or exterior doors, ideally suitable for garages, basements, barns, sheds, warehouses, backyards, etc. Can also be used for fastening racks or as a hook. 5. Easy Installation: In just a few minutes, your home can be safer. Simple drilling is required, and each opening bar bracket has tool holes for easier tool access. Specification: Item Type: Door open bar holder Material: Carbon steel Weight: Approx. 545g / 19.2oz Fitment: Fit for 2x4 board Plate Length: 14.2cm / 5.6in Holder Part Size: 4x4x6.5cm / 1.6x1.6x2.6in . Package List: 2 x Door Open Bar Holder10 x Screw