Build an awesome marble run and learn how to make other DIY creations with Zap! Extra Make Your Own Marble Run.
With detailed guidance and all the components you need to construct one epic marble run, PLUS step-by-step instructions for creating eight DIY projects of your own, this kit has hours of entertainment for curious minds. Put your inventiveness and imagination to work and learn about engineering along the way!
• 19 card sheets with 89 press-out pieces • 8 marbles • 48-page book