The Walk About Limited Slip Collar helps to prevent your dog from backing out of their collar so that you can enjoy the adventure. Made with durable, steel hardware and double-sided polyester webbing that can withstand 120lbs of weight and ideal for medium and large dogs. Collar is easy to adjust and allows you to adjust the slip to a length that you and your pup are most comfortable with. Includes reflective trim for visibility in low light adventures. This product comes with the hassle-free Kurgo lifetime warranty against manufacturer defects when purchased new from an authorized seller. For questions, please contact Kurgo customer service at 877-847-3868.