HAPE QUADRILLA WOODEN MARBLE RUN CONSTRUCTION: SUPER SPIRAL - 101 PIECE - 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. 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. 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. Provides quality time for the whole family to play together and enhances parent-child interaction and bonding. This is a perfect racing toy that will encourage children?s spatial thinking, problem-solving capabilities and teamwork skills, but also aid their STEAM development. All Hape products are manufactured with high quality materials and finished with non-toxic child-safe paints making them extremely durable. Compatible with other Hape Quadrilla Marble Run, but is not compatible with Hape Marble Run E1100 E1101 E1102