Marbleocity 4-Bar Link

Build a model of four-bar linkage with Marbleocity. Use the hand crank or attach a motor (sold separately) to watch the marbles ascend and then flip-flop down again. It’s part of the first Marbleocity marble machine line to feature colorful plastic accents. Perfect for beginners; one hour build time. Triple Play models can connect to one another for bigger fun.

Evaluation comments:

“Once we put the kit together it was fun to see it in action.”

“The final result was something we were proud to show off.”

“Great for kids who enjoy STEM and puzzles.”