Get closer to the Quadrilla action with three gutters that make your marbles race around the outside of the colored blocks on their way to the bottom. Looks cool and extends run-time. 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. Develop Your Childs STEAM SkillsThe Hape Marble Run has been designed to stimulate your childs understanding of the STEAM (Science, Technology, Engineering, Art and Mathematics) principles. It will greatly improve your childs logical and engineering thinking. Improve Your Child's Motor SkillsNot only will it develop your childs STEAM skills it will further enhance your childs hand-to-eye coordination, dexterity and manipulation abilities. Hape Quadrilla Marble Run FinishesHape Toy finishes are all non-toxic, child safe and of the highest quality. Hape constructs their toys using FSC accredited wood products. Hape toys stimulate children through every stage of development and help nurture and develop their natural abilities. All Hape products meet or exceed all applicable safety standards.