STYDDI Dog Training Bell, Tinkle Pet Door Bell Hanging Durable Brass Doorbell for Potty Training Housetraining Houserbreaking Including Doggie Bag and Training Guide HIGHLY EFFICIENT DOG POTTY TRAINING BELL A great and fun way to house-train your dog is to train her to communicate with you by ringing bell when she needs to go outside to potty. Teaching your dog to ring a bell prevents her from the uncivilized behavior as scratching on the door or barking to tell you to let her out. This highly efficient doggie doorbell from STYDDI makes potty training, housetraining and housebreaking easier, and train your dog to ring a bell to be let outside. EASY TO INSTALL - Our Bells come with three screws for easy installation. You can mount the bell on the door or wall. Unlike strap type door bells which might be to highly for puppies or small dogs to reach you can put our bell at the perfect height for your dog. LOUDER SOUND & WIDELY USED - When your dog touches the bell, it makes a pleasant ringing sound that can be heard at least several rooms away. Not only can it be a pet dog door bell, but also can be a service bell/doorbell for stores, restaurants, bars and hotels. TOP QUALITY MATERIALS - Unlike strap doorbells that are made of thin fabric that can easily fray over time from scratching, our bells are made out of solid metal guaranteed to never break. A REAL BARGAIN - Not only will you receive a springy metal doggie doorbell, but you will also receive a waste bag dispenser and 1 roll of waste bags. The instruction of the dog petty bell is attached in the package. You can save money on wipes, sprays, deodorizers and other cleaning products. Keep your house clean and tidy by using STYDDI Potty Training Doggy Door Bell. It starts with safety and quality. Jingle bells were never designed to be used by pets. They contain several slots which your dog&#039;s claws can become stuck in which is dangerous. Our solid metal bell contains no slots. Unlike other bells that are made with thin ribbon that can easily fray our bell is made out of solid metal. Bells that hang off door knobs may not hang low enough for puppies or small dogs to reach. It&#039;s this attention to detail and design that separates us from the rest.