The KONG Stuff-A-Ball helps support your dog's chewing behavior. Made from the KONG Classic rubber, this ball fulfills instinctual needs to chew while cleaning teeth and gums. KONG Denta-Ridges turn this toy into a fun treat dispensing challenge. To extend playtime stuff with KONG Snacks and KONG Easy Treat. Key Features: Classic Red Rubber Ball with Denta-Ridges that can be stuffed with treats; pastes or peanut butter to extend playtime Helps clean teeth and gums while chewing Made in the USA. Globally Sourced Materials.