The Kong Classic’s natural red rubber formula is designed to be durable for long lasting chew sessions. The stuffed Kong goodie ribbon is even more enticing when stuffed with Kong Easy Treat or snacks. Patented Goodie Gripper holes are ideal for stuffing. This toy promotes your dog’s instinctive need to play and promotes plenty of healthy exercise. made for medium dogs from 7-16 kg (Power Chewers increase one or two sizes or try Kong Extreme). Made in the USA from globally sourced materials.