Description Adjustable Length: each hanging dog bell for door measures about 78 cm, with a clasp which can be fastened into between beads, so you can adjust the length according to the height of door and dog, practical and convenientExquisite Design: our dog doorbells for potty training are designed in 3 colors, namely white, gray and burly wood, and there are 4 small bells and tassels in one end of each doorbell, looking delicate and attractive, which can add a touch of novelty and style to your homePleasant Sound: the bells on the dog training bell are made of quality metal; When the dog rings it, you will hear clear and pleasant sound, allowing your dog to communicate with you in the gentle way and making you spend every day happilyHow to Use: the bells for dogs to ring to go outside are easy to use; First get the dogs attention, point to the bell and say your instructions; When your dog completes the action, reward the dog with food; Then repeat the steps several times to deepen the dogs memoryIdeal for Training: our dog potty bell is an efficient tool which helps your dog communicate effectively with you; Your pet can get your attention by knocking on this doorbell without barking when your dog wants to go outside or inside, keeping your home clean and tidy