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. Inspired by Da Vinci, a German engineer invented Quadrilla as Christmas gifts for his children. It provides endless creative building possibilities and encourages spatial think and problem solving. Each of the 7 different colour blocks has a different function and its the worlds only kinetic marble run. It has won "Spiel Gut" (Good Toy) Award and Oppenheim Toy Portfolio Platinum Award. Providing over a thousand of happy playing hours, Quadrilla is worth every penny. All Quadrilla marble run sets are crafted with heirloom quality birch and rubber wood for long-lasting marble racing fun. All Hape toys have a non-toxic, child safe and high quality finish and are made using FSC accredited wood products. Hape toys stimulate children through every stage of development, help to nurture and develop their natural abilities and all toys meet or exceed safety standards. This 97 piece set includes marbles, rails, and chimes for musical motion. Music Motion turns up the volume on classic Quadrilla marble runs by combining strategically-placed musical chimes with wooden rails and blocks. Music Motion by Quadrilla adds a musical element to the marble run formula. Music Motion includes little xylophone keys built into different building pieces, so marble run builders can get even more creative with their constructions. Set them up in crazy ways, or why not try having marbles play a tune as they roll down the raceways? Quadrilla's Music Motion can be combined seamlessly with Quadrilla's other marble run sets. German engineering design inspired by da vinci circles with endless creative building possibilites for spatial thinking minds. Each of the 7 different color blocks has a different function - fun practice for logical and engineering thinking. Quality time togther - the whole family playing together is the best gift. Thousands of happy playing hours - an heirloom toy worthy of every penny. For ages 4 years and over. EAN 6943478007840. WARNING(S):Not suitable for children under 3 years old. Only for domestic use. To be used under the direct supervision of an adult.