Quadrilla The Ultimate Marble Run

Ages 4+ Features 36 distributor blocks and a combination of spiral twists, S-shaped rails and curve rails for the ultimate Quadrilla experience. Marble-run construction toy made with durable wood and non-toxic, water-based paints Includes 36 distributor blocks, 2 S-shaped rails, 5 big and 5 small curve rails, one large and one medium-sized spiral twist, 20 height adjusters, 10 stabilizer rings,16 accelerators, 5 hole shutters, 100 marbles, and one cotton bag Marbles gain momentum as they spin around the spiral twists Curve rails allow for cyclone-like run configurations Endless possibilities for reconfiguring the layout. See enclosed guidebook German-engineered design inspired by Da Vinci Circle Helps to develop spatial thinking and an understanding of Science, Technology, Engineering and Mathematics STEM principles Praised by The Wall Street Journal as the perfect toy for teachi

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