Get more spinning and more surprises with this deluxe Quadrilla set. The Hape Quadrilla Super Spirals Wooden Marble Run Construction Building Set is a great way for the whole family to play and learn together. This marble run construction set is an excellent STEAM toy for helping your child develop their imagination, problem-solving skills, counting, color identification, spatial and reasoning abilities, and more. Includes a xylophone rail that plays a tune as marbles run over it, two double-sided spiral twists, plus four special control blocks to randomly distribute marbles. Features see-saws, spiral twists, and the knob and button on the distributor block can be used to change marble direction. Use the building ideas from the included instructions or your imagination and engineering vision to build different marble roller-coaster constructions with this Quadrilla wooden building set. Compatible with other Hape Quadrilla Marble Run, but is not compatible with Hape Marble Run E1100 E1101 E1102.Details:Multicolored129 piecesNontoxicWoodFor ages 4 and up