Slot these brightly colored pieces together to build unique marble runs. The marbles disappear inside the columns and roll down the chutes as they descend to a home base. A variety of routes can be devised. Set of 100 includes eight chutes, 42 tubes, five bases, three starter tops, two see-through tubes, three vortices, two vortex joints, wiggly chute with bell, staircase with support, curved chute with horizontal wheel, two-way chute with alternating piece, 180° turn, S-shaped chute, three paddle wheels, wheel casings, vertical wheel chute, and 20 marbles.