HUB Switch Action Set

This Switch Action marble run set is a fantastic STEM toy that is a complete stand-alone set or can be used to expand on existing run elements. Small yet powerful, the switches turn and make it possible to aim at two terminals at once. It's compatible with building blocks from other manufacturers! 

Product Details:

• Promotes creativity, problem-solving, strategic thinking, and STEM learning
• 15 building blocks
• 22 run elements
• 2 special elements
• 3 marbles
• 1 base-plate
• Suitable for ages 4+