Simple operation: one-button control button to loosen/reduce the length of the cord, simple and convenient. High quality: the dog chain is made of ABS plastic, flat pull belt made of polyester high quality, flexible and resistant to wear, traction and tearing. A chrome metal hook is used, which is not easy to rust and is durable. No Tangle: The sturdy nylon folder adopts a new mouth design. Powerful leveling spring and anti-roll rope, the dog rope can be retracted smoothly at any angle, so your pet has enough space to enjoy it freely. Large Applicability: Suitable for all kinds of dogs and other medium and large pets. Pets can be used for walking, training and jogging outdoors.