1. Tie-Out Cable uses 360 degree rotating traction ring, effectively avoiding the cable winding. Gives the pet a better activity experience. 2. Temporary fixed pile uses a spiral design, it allows us to save effort when insert and pull out. 3. DogPileSet uses high quality stainless steel, the structure is safe and reasonable, strong pull, durable. Strong grip, don't worry about its being pulled up by pets. 4. It is super easy to install. We just screw the stake into the ground and connect the cable to the chain. 5. The choice of different chain lengths will bring more selectivity to your use.