Liver Snaps, Peanut Snaps, Kong Stuffin', Tail Mix and more!  |  | Air Kong Dog Toys are made with the same durable materials as tennis balls. The round tennis ball - a long time favorite just got more fun.  |  | More popular Kong products, Dog & Cat Zoom Groom, Kong Tug-Toy, Cool Kong, Kong Flyer, & Training Dummy.  |