The KONG Dental rubber dog toy is designed for cleaning teeth and gums while giving an appropriate chewing outlet and supporting a dog's instinctual needs. Made out of KONG Extreme Rubber formula, the KONG Dental toy has grooves that help clean teeth. Stuff the inside of the grooves and the toy with your dog's favorite treats for added enjoyment. Want to extend your dog's chew time? Stuff with KONG Snacks and entice with a dollop of KONG Easy Treat.