Safe & Durable: The dog chewing stick is made of premium TPR material, bite-resistant, environmental friendly, non-toxic and odorless, safe to chew, not harmful to your dogs' dental health. Great Teeth Cleaner: This dog toothbrush stick has convex points on the surface, which helps clean dogs' teeth, massages dogs' gums grind away plaque, and protect them from oral diseases. Treat Dispensing Toy: Pet food or treats can be put into the concealed hole in the head. This kind of feeding way is easy to attract your dogs' attention and induce them to chew. Training & Interactive Toy: By letting dogs figure out how to get food from the toy, the dog teeth cleaning toy can develop the dog's intelligence. Meanwhile, it also helps your pets relieve boredom and depression, prevent them from destroying the furniture. Suitable Size: There are two sizes for your choice: the small size is suitable for small breeds such as Poodle, Papillon, Bichon Frise; the large size is suitable for medium and large breeds like Husky, German Shepherd, Tibetan Mastiff, Border Collie, Golden Retriever, Labrador, etc.