The Kong Extreme Ball is the toughest and most durable ball on the market. The perfect toy for the dog that loves to fetch and chew.
All Planet Kongs are available in Kong's extreme black formula. It is the world's strongest dog toy rubber and provides extraordinary durability for tenacious power chewers.
Kong Toys are recommended by veterinarians, trainers, dog professionals and satisfied customers worldwide. Millions and millions of dogs have confirmed that KONG is "THE WORLD'S BEST DOG TOY!"