A great and fun way to house train your dog is train her to communicate to you when she needs to go out to potty is by teaching her to ring a bell. This is best taught after your dog seems to prefer to go outside to potty and you would like to give her a good way to communicate that to you. This works especially well for dogs who only a few accidents or have accidents by doors. Teaching your dog to ring a bell prevents her from needing to resort to such uncivilized behavior as scratching on the door or barking to tell you to let her out. Features - Color: Blue and Yellow.- Material: Metal and plastic.- Size: Approx. 7.2 x 7.2 x 5cm.- Flat and wide button, easy for your pet to ring.- Pleasant sound, loud enough even you are in another room.- Good way to communicate to you when they needs to go out.- Let your pet more happy, when they got a communicate advice.- Teaching your dog to ring a bell prevents her from needing to resort to such uncivilized behavior as scratching on the door or barking to tell you to let her out.Packing list: 1 x Training Bells