The KONG Genius Leo is named in honor of Leonardo Da Vinci and is designed to stimulate a dog’s curiosity and hold its attention. The toy is great for helping combat boredom and separation anxiety and can be used as a treat dispensing toy on its own - or connected to the Genius Mike for an increased challenge. Genius toys are great for puppies and adult dogs alike. Special Features Reduces boredom and separation anxiety for average chewers Interlocks with other Genius toys for an added challenge Product Details: Weight: 5 ounces HxWxL: 5 x 2.75 x 2.5 inches