LEGO Gravity Drop

Create a gravity-powered marble maze with LEGO builds that spin, flip, whirl, and plank. High quality chipboard pieces connect to make a one-and-a-half-foot tower with endless customization options to add the LEGO Technic mechanisms. 

Includes: 64-page book of ideas and inspiration, 168 LEGO® elements, 6 punch-out tower boards, 3 punch-out sheets, 6 wooden balls