Become "Best in Show" with the Country Brook Design Martingale Show Lead! Our leash is designed with a variety of activities in mind. Whether training, participating in a dog show, or even going out for a simple walk, this slip lead will make handling your puppy easier. The loop will tighten around your dog when she pulls away, but will loosen once she heeds your commands. The Country Brook Design Martingale Show Lead is the perfect fit for your dog! The Country Brook Design Martingale Show Lead is made with 100% nylon webbing. Please be sure to measure your dogâ€â„s neck (with a string or tape measure) where the slip lead will lay. Our show lead fits up to a 25 inch neck. If you have any questions or problems, then please give us a call before ordering.