1. Upgraded Clip: 360° Rotating Clip and Lock, super strong and lightweight, can be rotated 360° at any time, your dog will be able to move around you happily and safely without getting tangled. 2. Lightweight: The dog running cable is light, no burden even for small dogs, and easy to carry. 3.Easy to use: The quick release clips can be used on both ends, just hook one end to the collar and attach the dog to the overhead cart, attach to screw eyes or stakes, or use the other end to clamp the cable around the tree . 4. Gifts: You can give this product to your family/friends/colleagues who have pets, etc. 5. Uses: Dog lines are suitable for outdoor activities such as camping, parks, yards, gardens, etc., providing your pets with great mobility while keeping them within a safe line of sight.