Marble Run meets game of Pool in this exciting build and play activity! Smartivity projects are designed to help children learn the skills required for success in real life, and all-around development. Use this mash-up of two fun games to introduce children to motion on slopes, momentum transfer, gravity, and centrifugal force. Play the slider game: use the wheel to raise marbles and release them. Aim with levers on both sides. Play marble-pool: strategically place marbles so the striker marble coming from the slide track sends them into corner or side pockets. Contains 136 pieces including marbles, engineered wood components, and instruction manual. Can be painted or colored once assembled. D.I.Y. time: 60 minutes / Play time: unlimited. Age 8 years and up. Meets all ASTM, US CPSC, and CPSIA safety standards.