Classic KONG Small KONG Classic has been the gold standard of dog toys for over thirty years. The super-bouncy, US made, natural rubber compound is perfect for typical chewers. Veterinarians and trainers recommend stuffing KONG toys with KONG treats and KONG Ziggies to keep dogs busy and deter misbehaviors. The original, stuffable treat dispensing toy! FEATURES: Recommended for most adult dog. Super bouncy and can be chewed Cleans teeth and conditions gums Recommended by Veterinarians, Trainers & Dog Professionals Made of natural, puncture resistant rubber SPECIFICATION: Small (For pets 1-9 kg) - 3 inches Medium (For pets 6-15 kgs) - Large (For pets 13-29 kgs) - 4 inches X-Large (For pets 27-40 kgs) - 5 inches