3 sizes of dog toothbrushes: Suitable for all Small Medium Large Dogs. Choose the right size based on the size of the dog. Made of high quality rubber, nontoxic ,durable, 360-degree bristle configuration, bite resistance and easy to clean Designed to clean teeth on both sides and is angled to fit comfortably in your pet's mouth. Encourages pets to clean their teeth every day,Soft texture designed to be safe for your dog's gums. 5. Multi-function: it can be a toy to help dogs to ease the unhappy mood while it is also a toothbrush that can distribute toothpaste automatically, and you do not need to spend time and energy to clean your dog's teeth.