The green green silicone gel dog toothbrush can be used not only as a cleaning tool, but also as a training tool to prevent the dog from biting other things in the house. The large dog brush is not only suitable for puppies, but also for big dogs. Enough size can take care of the dog's mouth. It's a good entertainment toy with a safe, non-toxic material and no need to worry about hurting the dog's health. Dogs can be applied anytime, anywhere. This is the small size, please call for medium and large size.2.8" L x 1.5" W x 3.8" H