Perfect for any budding engineer with a sweet tooth! Make your own gumball machine with a book of step-by-step instructions, adjustable ramps, custom snaps, and bumper guides. Then, keep the ball rolling with other gumball-related science experiments using simple machines. It's a ball of fun! Ages 8+
Includes:
- 36-page instruction book
- 26 custom chipboard pieces
- Spinner knob
- Plastic window
- 11 custom plastic parts
- 27 snaps
Gumballs not included