Kids love working with tools. Tools are a great way to develop hand skill and coordination. It's a win - win as kids work with a real, "kid size" battery-powered drill and hand held screw driver with 3 interchangeable bits. Comes with 28 chunky plastic nuts and bolts to build 4 colorful, heavy cardboard cars with spinning wheels. Easy clean-up as pieces al fit in handy storage case with carry handle. Perfect for play by 1-2 children at the same time.