Feature: 1. After installation, it can effectively protect wires or cables from malicious damage or bad weather. 2. The gooseneck tube is flexible, so the wire can easily pass through it, and the inner surface will not hurt the wire. 3. Our door loop are made of high?quality stainless steel and plastic materials, with special surface treatment, anti?rust, anti?corrosion, strong and durable. 4. Widely used in Internet door locks, access control systems, video cables, network cables, police systems, video doorbells, etc. 5. With compact shape, lightweight and portable, take up no space and you can put it anywhere when not in use. Specification: Item Type: Access Control Door LoopHose Material: Stainless steel Head Material: Plastic Hose Length: Approx. 424mm/16.69in Hose Diameter: Approx. 12mm/0.47in. Package List: 1 x Access Control Door Loop