HAPE QUADRILLA WOODEN MARBLE RUN CONSTRUCTION: VERTIGO - 134 PIECES - As with every Hape Quadrilla Marble Run Construction Sets, it combines easily with other Hape Quadrilla products for expansion and unique combinations that will enhance your child's play experience. 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. Praised by the Wall Street Journal as one of the top toys to teach kids code and STEAM principles. German Engineering Design Inspired by Da Vinci circles with endless creative building possibilities for spatial thinking minds. ?Spiel Gut? (Good Toy) Award and Oppenheim Toy Portfolio Platinum Award Winner. Compatible with other Hape Quadrilla Marble Run, but is not compatible with Hape Marble Run E1100 E1101 E1102.