Treat Dispensing - Each toy has a hollow cavity inside to hold treat pellets. As dogs chew on the toy, delicious treats would fall out of the cavity to reward playing time. The surface is also designed to help clean teeth and massage gums while chewing. Super strong material allows dogs to explore and gnaw to get the treats out, so combining treats and the toy will keep your dog engaged and busy. To clean, simply rinse with water. This toy is dish washer safe. Reduce unwanted behaviors - Chewing on toys helps your dog to release excessive energy, relieves stress, and reduces boredom that often lead to unwanted pet behaviors. This Toy is designed to keep your dog engaged in playing and cleans teeth at the same time! Not recommended for puppies under 6 months old. Size Chart - Soft texture is suitable for dogs of all age, except puppies with their baby teeth. Puppy’s teeth under 6 months old before teething stage are pointed and sharp, it will puncture the surface of this toy and cau