The KONG Classic entertains and satisfies average chewers and is recommended for dogs weighing between 5kg and 15kg. It is made of a super durable formula and is recommended by vets and dog trainers worldwide. The KONG Classic bounces, making go-and-fetch games even more fun. Apart from used on its own, it can be stuffed with treats, pastes (KONG Stuff’n Paste) or peanut butter.