Quadrilla is a high quality wooden Marble Run construction system, ideal for beginners.
Get started building your own marble runs with this fun 28 piece wooden set that includes 30 colored marbles, curved rails and the fascinating spiral roundabout funnel. Design your own run with the 7 colored blocks, each of which has a different route for the marbles to pass through. Drop two marbles into the top and watch as they race down different paths to the bottom. Crafted with heirloom quality birch and rubber wood, the award-winning Quadrilla is the world's only kinetic marble run. Long-lasting fun.