Klutz LEGO Gravity Drop

What goes up must come down! Make the coolest gravity-powered marble maze with LEGO builds that spin, flip, whirl, and plank. Heavy-duty chipboard pieces connect to make a one-and-a-half-foot tower with endless customization optios to add the LEGO Technic mechanisms. Comes with: 64-page book of ideas and inspiration, 168 LEGO® elements, 6 punch-out tower boards, 3 punch-out sheets, 6 wooden balls

• Absolutely every brick, axle, and element you need

• Ideas to go beyond the book with creative STEM learning

• Game-ify your LEGO bricks with ideas for friendly competition

• The ultimate companion to LEGO® Chain Reactions