This wooden gear puzzle features 6 pieces in 6 colors and 3 sizes. Match the gears with corresponding outlines and slot them on the pegs. Can you get all the pieces spinning at once? Swap, connect and turn the gears. Create different combinations. Explore cause and effect, spatial reasoning, critical thinking and more. The colored gears are also great for color recognition. Made from durable wood, this gear board is designed to last for years of home or classroom use. For ages 18m+. Size of baseboard: 8.6" square. Size of largest gear: 4.1" dia.