1、Our door loop is made of high-quality material with special surface treatment, anti-rust, anti-corrosive, strong and sturdy to use 2、It could effectively protect the wire or cable from malicious damage or bad weather damage 3、Very easy to install on the door with the included screws, no need any special install tools 4、The gooseneck tube is flexible, so wires can be easily got through it, and inside surface won't hurt the wire 5、It can be widely used in internet door lock, access control system, the video line, the network line, the police system, the visual doorbell and so on Description: Our door loop is made of high-quality material with special surface treatment, strong and sturdy to use. It can effectively protect the wire or cable from malicious damage or bad weather damage, very safe to use. And it is very easy to install with included screws. Our door loop is widely used in  internet door lock, access control system, visual doorbell and so on. Features: Our door loop is made of high-quality material with special surface treatment, anti-rust, anti-corrosive, strong and sturdy to use. It could effectively protect the wire or cable from malicious damage or bad weather damage. Very easy to install on the door with the included screws, no need any special install tools. The gooseneck tube is flexible, so wires can be easily got through it, and inside surface won't hurt the wire. It can be widely used in internet door lock, access control system, the video line, the network line, the police system, the visual doorbell and so on. Specifications: Condition: 100% Brand New Material: Zinc alloy Color: Shown as picture Total Length: Approx. 400mm / 15.7inch Gooseneck Tube Diameter: Approx. 10mm / 0.4inch Triangle Ends Size(L x W): Approx. 30 x 31mm / 1.18 x 1.22inch Weight: Approx. 60g Package Included: 1 x Door Loop 4 x Screws