Known for being the "World's Best Dog Toy!", Kong Dog Toys are recommended by Dog Professionals, Veterinarian, and Trainers worldwide. Choose from Classic Kong, Extreme Kong, Puppy Kong, or Senior Kong. All are available in various sizes to meet your dog's chewing needs. The Classic Kong is for the typical chewer. The super-bouncy, red rubber is great for keeping your dog busy and out of trouble. For very powerful chewers, there is the Extreme Kong, constructed of an ultra-strong black rubber. Special Kong dog toys are available for your puppy or older dog in Puppy Kong and Senior Kong. Both Puppy Kong and Senior Kong are constructed with a special gentler rubber to be easier on your dog's teeth and jaws. Whether you get the Extreme Kong, Classic Kong, Puppy Kong, or Senior Kong, each Kong allows for a treat or paste to be inserted for hours of long lasting entertainment.