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 Material: High Quality Non Toxic Natural Silicone. Soft, Washable and Safe Bite Resistant & Safe Material - Made from a strong TPE material that is intended to be bite resistant, but not bite proof. The withstand bite force is about 0 to 40 pounds. Can be used as a trainging toy to play with the dog. 5. Meat flavored toothbrush makes cleaning teeth an enjoyable experience for your pet and promotes chewing.