Anytime Pet Store Kitten, Puppy and Dog Training Collars with Built-In-Leash, Medium. TRAIN CATS and DOGS TO WALK ON A LEAD: For pets up to 13 lbs, allowing kittens and puppies to grow up leash trained naturally, through positive lead training, during their daily upbringing. EASILY POTTY TRAIN PUPPIES AND KITTENS: The Built-In-Lead with bone shaped handle, Weighing less than 4 ounces, offers quick response, for faster potty training success, teaching pets to Walk, Rather Than Be Carried, by leading them to the designated location. GREATER STRESS RELIEF AT HOME: Smart hands-free Built-In-Lead functionality provides baby boomer to working singles, a convenient helping hand, easily curbing unwanted jumping and climbing and dangerous door dashing and escape. MORE FREEDOM FOR SOCIALIZATION AND PLAY: Holding up to 32 lbs, replaces disruptive searching, fumbling and connecting, not for pet owners wishing to continue restraining unruly pets in public, but for pet parents committed to easily training pets to "Heel" and walk at their side, through simple repetition and practice.