We have a 12 week old puppy who we are training to be on a leash. She is a puppy so she does like to bite and chew, but we redirect her every time she would chew on the leash. We would have her on leash for only 30 minutes per day while taking a walk. Despite that, she was able to weaken the area of the strap just below the stitching that holds the silver clasp. It completely ripped apart within 2 weeks of us purchasing this leash which was over $30!!! VERY DISAPPOINTED!! Will NEVER buy this brand again. DO NOT WASTE YOUR MONEY.