I love that we can use the Puppy Stroll Kit anytime we are out. Since it stays attached to the harness and has a dog drinking bowl in the kit. Anytime we are out, and our puppy needs a drink we always have a bowl for him. One less thing we need to think about. And with the side pockets he can carry a house key and any treats he may need. keeping my hands free or whatever comes up on our stroll, or out and about.