Give your marbles some air-time as they shoot out of this high-speed jump and off the Quadrilla layout. Hape Quadrilla is a high-quality wooden marble run construction system. It provides quality time for the whole family to play together. The best gift for your loved ones. All Quadrilla marble run sets are crafted with heirloom quality birch and rubber wood for long-lasting marble racing fun. Hape Toy finishes are all non-toxic, child safe and of the highest quality. Hape constructs their toys using FSC accredited wood products. WARNING: Choking hazard! Not for children under 3 years of age.