Build a working model of Archimedes Screw! Use the hand crank or attach a motor (sold separately) 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 to one another for bigger fun! Also works with Marbleocity Motor Kit, sold separately.

• Ages 9 and up
• Contents: Laser-cut Birch Wood Parts, Plastic Accent Pieces, Marbles, Tinkineer Graphic Novel with Assembly Instructions