From the manufacturer:
Melissa & Doug Innovation Academy kid-powered projects encourage open-ended hands-on exploration and experimentation - - its STEM learning made fun! With Pinball Game, kids can put together their own pinball machine with a bell for one or two players, while exploring physics and mechanisms! Easy-to-follow illustrated instructions help kids eight and older build their project independently. A built-in score counter lets players keep track of points as they perfect their pinball skills and investigate mechanical design and the physics of movement! The included Innovation Booklet enhances interactive learning long after the project is assembled. A portion of all sales of Innovation Academy products supports The Whitney Workshop in Hamden, Conn., which designs and teaches projects for kids and adults that blend art, science, and invention.