5mm Bold steel wire, can withstand 80 kg pull. A good leash when you are in the outdoor with your pet. 100% brand new and high quality.Special processing technology, anti-bite. Outside the use of high-quality pvc material, good wear resistance, waterproof, anti-rust, more dirt-resistant. Double-headed buckle design, no matter what direction to pull, are not easy to fall off, the use of more secure.