Move, connect and spin the gears to create endless combinations! Explore cause and effect, spatial reasoning, and critical thinking with this early STEM set. Teach children that actions and design affect the outcome. Develop curiosity, attention to detail and intentional play. Use it on a light panel to enhance sensory play and colour discovery. This gear set features 8 gears in 4 translucent colours and 2 sizes. The baseboard features 156 holes in a grid and rubber feet. Size of large gears: 10cm (3-3/4") L.