MindWare Contraptions 50 Plank Set
No glue needed
Just simple stacking of precision pine planks
Great indoor activity
Ages 7 and up
Young thinkers can design unbelievable ball track structures with these simple, stacking planks. Kids get things rolling with two balls and an instruction book detailing how to build build a "Shooting Gallery," " Turbine." "Step Curve" and more.
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