These extremely durable toys bounce wildly when tossed & float in water! The Footballs feature our patented Treat Trapper™, which firmly grips a variety of treats, gradually releasing them as your dog chews. The small and medium Football have one slot for treats; the large has two. Recommended for strong chewers. Available in 3 sizes. For aggressive chewers, a large black extreme football is available. Small - < 20 lbs Miniatures, Terriers, etc. Medium - 20 - 50 lbs Beagles, Shelties, Spaniels, etc. Large - > 50 lbs Labs, Goldens, Rotties, etc.