Train your dog’s smell: – This dog and cat puzzle ball helps to improve your pet’s smell. You can hide food in this dog food puzzle and let your dog find their snacks under the messy layer of this dog food puzzle. Improve Digestion and Health: < p>– This snuff for large dogs improves your dog’s digestion by slowing down his eating. Help relieve your dog’s stress and destructive behavior. Machine Washable: – This dog snack puzzle is made of anti-pilling -wool material. They can be machine washed or hand washed. Rollers: – There are many petals on the dog food ball, and the dog keeps rolling it , instead of leaving the mat on the floor. The compact size makes it easy to take with you when travelling. Long Play: – This dog snack distribution ball is designed to increase the number of snacks limit your dog can get while encouraging extended play time. Size: 15 cm