The Sporn Non-Friction Leash works in harmony with any pull control harness. It helps to provide comfort to the dog owner by absorbing stress caused by sudden pulling or lunging. This patented leash has an elasticized outer sheath that stretches and moves with your grip, eliminating “rope burn” type friction against your hand. The inner cord is a solid rope, so the actual leash doesn’t stretch out like a bungee leash. The Non-Friction Leash comes with a comfortable, ergo-grip handle and heavy-duty trigger snap.