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 Meat Flavored Throughout:To promote chewing & increase palatability. 360 DEGREES OF PROTECTION - Dogs often use chew toys on one side of their mouths. It is not a guarantee of getting all teeth surfaces clean. The toothpaste reservoir can inject toothpaste and come out through 6 small holes,With our 360 degree toothbrush, the owner has more control over which surfaces they're cleaning and the level of vigor. NOT INTENDED AS CHEW TOY - Not intended as a chew toy and should not be given to dogs independent of owner use. Proper owner use and supervision is required.