Kong Dog Toy - Red, Medium For typical chewers. Kong’s exclusive, super-bouncy, red, natural rubber compound is irresistible for most dogs. Five chewer-friendly sizes are available to satisfy dogs with typical chewing temperaments. Take this Kong and stuff it! Veterinarians and trainers recommend stuffing Kongs with food and treats to keep dogs busy and deter misbehaviors. Kong toys are enthusiastically used and recommended by veterinarians, trainers, dog professionals and satisfied customers worldwide. Millions and millions of dogs have confirmed that Kong is "The World’s Best Dog Toy!"