The KONG Extreme Dog Toy is just the right thing to withstand consistent rough play from a dog that loves to chew. It s the most durable version of the original KONG toy. It s constructed of a black rubber compound that s ultra-strong and ultra-durable. This durable dog toy can withstand the most powerful chewers. It comes in a solid black color and is fun for them to chew chase and fetch. It s available in three different sizes which makes it easy to find the one that fits your dog s size. Treats can be inserted in the center to extend playtime and give a furry companion mental stimulation.