KONG Extreme Flyer Dog Toy. KONG Extreme Flyer is made for fetching. It is made of durable KONG Extreme rubber which allows for a forgiving catch, plus the material delivers a dynamic rebound just in case your dog misses the initial toss. Let your dog’s love of fetch take flight with a safer disc that delivers tons of healthy activity. Durable KONG Extreme Rubber makes for a softer; softer catch during fetch Support healthy exercise and instinct to play Made in the USA. Globally Sourced Materials.