The KONG Stuff-A-Ballâ„¢ helps support your dogs' chewing behavior. Made from the KONG Classic rubber, this ball fulfills instinctual needs to chew while cleaning teeth and gums. KONG Denta-Ridgesâ„¢ turn this toy into a fun treat dispensing challenge. To extend playtime stuff with KONG Snacksâ„¢ and KONG Easy Treatâ„¢. Proudly made in the USA.