Advantage: 31 inch rope leash + double bungee extension (20 inches - 35 inches)Heavy Duty Design: Climbing rope and tightly woven nylon bungee extension make the dog leash more durable but lightweight, heavy duty and easy to cleanNo Tangle Design: 360 swivel clasp design allows for auto adjusting when dogs criss cross, no limitation for your dogs while moving from side to side without messing the leashShock Absorbing Bungee Extension: Unique bungee design helps to absorb shock of quick movement when used with energetic and active dogs, reduce the feeling of being pulled. The length of the bungee can be extended from 20 to 35 inch with strong pulling force, which give your dogs enough room to run in front of you or beside youComfort Padded Handles: Features soft padded handles for amazing comfortable shock grip, and protects your hand from rope burn