Simple operation: control button button to relax/reduce the length of the cord, simple and practical. High quality: The dog chain is made of ABS plastic, flat traction belt in high quality polyester, flexible and resistant to wear, traction and tear. A chrome metal hook is used, which is not easy to rust and which is durable. No tangle: the robust nylon file adopts a new mouth design. Powerful leveling spring and anti-roll rope, the dog rope can be reclaimed gently at noise, so that your pet have enough space to freely take advantage of it. Large Applicability: Suitable for all kinds of medium and large dogs and other animals. Domestic animals can be used for walking, driving and jogging outdoors.