Super-Fun Marble Run - Master Set

Just drop a marble onto the tracks—then enjoy the ride! Children simply fit the rugged plastic pieces together to create action-packed marble mazes—complete with dips, drops, hairpin turns and more! Our open-ended builders fit together any way imaginable, so kids never run out of new courses! Plus, you get a step-by-step guide with illustrated instructions for creating mazes that range in difficulty. Set includes 96 building pieces and 20 marbles. Funnel pieces measure 6 3/4" in diameter.