1.【High Quality】- The tie-out cable has rigorously quality tested. We use plastic(pvc) coating which wrap the rugged steel wire to prevent the pet from rubbing and hurting. Prevent cracking and rust-proof. 2.【Buffer Spring Design】- The leash for dog with additional spring absorbing the shock, buffer spring at the end for a protection of dog's neck. It will avoid the danger to pets when they are shocked. And the 360°smooth rotation buckle will reduce the twine of the cable. Safer for your pet. 3.【30 Feet Size】- 30 feet long dog leads with 4 inch spring. It suitable for dogs up to 120lbs. You can use this dog tie out cable and let them move freely to make them happy while keeping him safe. 4.【Wide Application】 - Dog run cable is widely used. You can use dog cable to keep them safe in camping, park, yard, Garden and other outside activities. It’s also easy to carry.