Engage your pet with this durable red KONG toy. Perfect for chewing and fetching. Made from natural rubber. KONG Classic Dog Toy. This durable, natural rubber toy is designed for average chewers and can be stuffed with treats to extend play time. Here is some shopping information for the product: Size: Medium, suitable for dogs weighing 15-35 lbs (7-16 kg). Material: Made from a super-bouncy, red natural rubber compound. Function: Ideal for chewing, chasing, and fetching, with an unpredictable bounce. New