Quadrilla - the challenger create endless quadrilla marble runs with this challenging set of straight and curved rails, high-velocity funnels, a seesaw, accelerators, blocks, levelers, bases and 50 marbles. Quadrilla is crafted with heirloom quality birch and rubber wood for years of durable fun. Hape toy finishes are all non-toxic, child safe and of the highest quality. Durable child safe paint finish and solid bamboo and wood construction are hallmarks of hape toys. Hape's toys stimulate children through every stage of development and help nurture and develop their natural abilities. All hape products sold in north america meet or exceed all applicable safety standards.