DescriptionAdjustable length: each hanging dog bell for the door measures approximately 90 cm, with a buckle that can be attached between the beads, allowing you to adjust the length according to the height of the door and the dog, practical and convenientExquisite design: our dog door bells for training are designed in 3 colors, namely white, gray, and raw wood, and there are 4 small bells and tassels at one end of each doorbell, which looks delicate and attractive, adding 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 a clear and pleasant sound, allowing your dog to communicate with you in a gentle way and making you spend every day happilyHow to use: the bells for dogs to ring to go out are easy to use; First, get the dog's attention, point to the bell, and say your instructions; Once your dog has completed the action, reward the dog with food; Then repeat the steps several times to deepen the dog's memory