KONG's Extreme range is designed to be ultra-durable and ultra-strong using the toughest rubber of all toys. Strong and safe for the most powerful chewers. This KONG toy can help reduce boredom and seperation anxiety - try flling with KONG treats and snacks for a special treat at playtime. Recommended by dog trainers and veterinarians worldwide. Gift your dog this Extreme KONG ball for long-lasting fetching and chewing fun.