When a tennis ball just won't bounce, roll, fly, and last long enough, Man's Best Friend will thank you when you throw the Caitec® Hero Retriever Series Outer Armor Dog Ball. This ultra-durable throw ball for dogs sports a soft, squeezable, chewable design that still holds up to the toughest bites. Uniquely engineered dog-bone-shaped grip points provide better hold for better throwing and biting.