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: Silicone, Soft texture designed to be safe for your dog's gums Contains stabilizing base so that your pet can hold the toothbrush easier. 100% Satisfaction: 60 Days money back guarantee. Simply contact us through your order history if you have any question, or if you are not satisfied for any reason and we will replace it or issue you a full refund.