Includes everything you need to build an 18-inch (45 cm) tall marble maze with wooden balls, LEGO Technic elements, and sturdy chipboard.
The convertible pegboard tower allows you to customize and expand with up to 159 included LEGO elements.
Includes 20+ different LEGO contraptions that interact on the gravity drop tower, plus 5 extra projects: 2 mini tower builds, a gravity labyrinth, and a grabber.
