Advantage: 31 inch rope leash + double bungee extension (20 inches 35 inches) Sturdy Design: Climbing rope and tightly woven nylon bungee extension make the dog leash more durable yet lightweight, sturdy and easy to clean. Tangle-Free Design: 360° swivel clasp design allows automatic adjustment when dogs cross, no limitation for your dogs while moving side to side without messing up the leash. > Shock Absorbing Bungee Extension: Unique bungee design helps absorb shock from rapid movement when used with energetic and active dogs, reduces the feeling of being pulled. The length of the elastic can be 20-35 inch stretch with strong pulling force, which gives your dogs enough room to run in front of you or beside you Comfortable Padded Handles: Features soft padded handles for a comfortable grip and protects your hand from string burn.