For running wire through walls, attics, crawl spaces, sub-floors and suspended ceilings, the PC part great insulating property. The item is strong flexibility, wear-resistant, and . Made of material, can be used for , not easy to break. Features - Color: Silver. - Material: PC, iron wire. - Size: 23.50X0.20X0.20cm/9.24X0.08X0.08in - Adopted by high grade material, sturdy and durable for use. - Suitable for wire, cable and heavy duty wire. Can adjust the tension, very convenient for using. - Push the spring to make it firm and not easy to slide, will be a great fastening tool. - Connect the one side, and the red wire cover prevents the wire from disconnecting when pulled. - Connect the other end with fish tape to connect the wire and fish tape firmly. Package list: 5 x Wire Harness