Super Dog Rubber Trio Ring Dog Toy Medium is made by durable nylon construction. In fact, it is formed by original Control-Flex technology. Hence they prevents the toy from snapping back into one of the pet dogs faces, promoting a safe, controlled version of a game. Also it can sometimes get out of hand. Thus, flexible and super-strong grips are made by Kong’s durable rubber formulation. In particular, this innovative toy for all dogs. It is dual-material toy. Kong gives its legendary quality and durability to the game of tug. In particular, it is made by thick solid rubber and with grip for extra strength.