【Strong Tension】There is a strong double bungee that provides enough slack to absorb a strong pull dog, it has enough pull to pull the dog to the side and withstand the burst of medium and large dogs, also you can use it as a regular lead rope, double leash, short leash, training bungee or running leash. 【Multi-function Running Bag】This waist belt has a variety of functions, can be used as sports or leisure bag, its multi-bag design can hold water bottles, mobile phones, keys and other necessary items to carry out. It's great to achieve hands-free running with your pet. 【Package Include】Running bag × 1； Bungee × 1；Belt × 2； Poop Bag × 1； Collapsible Water Bowl × 1.