This chewing and retrieving toy is not only fun, it also cares for your dog's teeth. The unique shape of the solid rubber toy makes it perfect for throwing and retrieving, but also for popular tug-of-war games. The bonus: While your dog chews on the toy, the special groove shape removes plaque and massages his gums. So the KONG® Stuff-A-Ball™ helps you care for your dog's teeth and keep them healthy. But the grooves can do even more: you can jam small treats inside or fill them with a tasty paste. Your dog is guaranteed to love playing with the KONG® Stuff-A-Ball™ dog toy even more. Note: Please never leave the pet unattended while playing. No toy is indestructible. To prevent injuries, the toy should be checked regularly for damage or loose parts and replaced if necessary.