K9 Athletix Potty Time Bells Housebreaking Dog Doorbells for Potty Training and House training your Dog - Loud and durable dog bells for puppy training and adult dogs HOUSEBREAKING MADE EASY: No more cleaning up messes inside, scratching, pawing, jumping, or incessant barking when nature calls for your furry friend! Just a quick chime of the bell and you'll know your dog is ready to go! EASY TO SET UP: The Potty Time doorbells are 26" long when fastened via the snap. Snap it in, and hang it from a hook, door knob, or door handle! LOUD AND DURABLE BELLS: At 1" thick all around, these bells can be clearly heard when rung! DOG TRAINING TOOL: Hang these potty doorbells on your doorknob or door handle for potty training, house training, housebreaking your dog, and housebreaking your puppy. These loud and durable pooch bells can be clearly heard and will help train your puppy or train your dog to let you know when they need to go potty outside! HASSLE-FREE RETURNS - We pride ourselves in delivering quality products! If for some reason you are not satisfied with your results, contact us to get your money back. NO QUESTIONS ASKED.