So this is the Stunt Puppy Leash. You just attach it to your dog's collar and then attach it to your waist. I bought it because it will be good for when I go to dog friendly stores, and I can be hands-free when I shop, and still have my dog with me. I'm not sure about how it will be with running. I feel like it's a little tight like it I don't know if it stretches but I still need things that you need more link through it, but we'll see, right? Let's go. Come on. My dog doesn't want to run today. I give it, I give it like... I don't know-- four stars. The quality is really good for the price but I wish it was longer so that we had more distance when we run.