PlayMonster PLMMAAS100BB Marbleocity Archimedes Screw Toy
5 In stock
Build a working model of Archimedes Screw. Use the hand crank or attach a motor to watch the marbles twirl up, and then roll down again. It's the first Marbleocity marble machine kit to feature colorful plastic accents. Perfect for beginners, one hour build time. Triple Play models can connect...