Material: The housing cable is made of heat and cold resistant PVC plastic layer. The inner cable adopts stainless steel wire and rotates vertically to ensure greater braking force and smooth operation.Catheter: The catheter is treated with a special process. The new PVC material has low temperature resistance and strong heat resistance, which is not only suitable for daily use, but also can be used in various extreme weather conditions.Transmission: The inner layer is made of carbon steel, and the core is made of high-quality galvanized steel, which is not easy to rust and oxidize. High tensile strength ensures greater stopping power and smooth running.Function: It is beneficial to bear the tensile force of the pipe during frequent replacement, reduce deformation, and ensure rapid replacement performance.