Product: LEGO Gadgets (Klutz Science/STEM Activity Kit) 10.25" Length x 0.75" Width x 10" Height
Brand: Klutz
Color: Multicolor
Promotes S. T. E. M.
Build 11 different machines ranging from practical to silly
Includes all 58 LEGO elements you'll need to get building
Encourages creativity with open-ended prompts

Search query: lego chain reactions
Relevance: Substitute