Product DescriptionMaterial: LeatherColor: Black, BrownQuantity of bells: 7pcsPackage Contents: 1*Hide Pet Doorbell Rope1. Proven Training System: If you& 39;ve been looking for an easy way to train your puppy without the use of pads and sprays, look no further. Our doorbell system uses your dog& 39;s natural sensitivity to sound to potty train faster. 2. No More Barking and Scratching: Dogs love to communicate with sound, and our bell provides your pup with a pleasant way to tell you he needs to get outside. Let your pet hear the jingle of bells instead of annoying barking and scratching3. EASY TO HEAR: Our brass bells are loud and clear while still being melodious, letting you know when your pup needs to go outside. You don& 39;t have to worry about an indoor accident because you don& 39;t hear your puppy ring the bell. 4. Adjustable Shoulder Straps: The belt has buttons to adjust the length of the bell according to the size of the pet5. Higher Quality Level: Because our doorbells are made of genuine leather and high quality copper bells, you can trust their durability and feel great when hanging them around your home for friends and neighbors to see. They look great hanging on your door