The best way to train your puppy: Teach them to ring their bells when they need to go outside instead of barking or scratching. | Suitable for dogs of all ages: With positive reinforcement, your dog will be excited to ring these new bells to go out at potty time. | Premium quality bells: Premium quality bells and not only sound great but also be powerful enough to resist stress from the most playful dogs. | Fashionable polyester: Our doorbells are made of soft polyester, which is durable and beautiful, Hanging on the door handle looks great. | Thoughtful design: The length of the doorbell can be adjusted to suit to different usage scenarios. （In the box: 1* Black polyester strap, 7* Silver bells）