The ultimate marble run! This giant 198-piece Quadrilla set has 36 distributor blocks, S-shaped rails, big and small curve rails, two spiral twists, height adjusters, stabilizer rings, accelerators, hole shutters,...
The ultimate marble run! This giant 198-piece Quadrilla set has 36 distributor blocks, S-shaped rails, big and small curve rails, two spiral twists, height adjusters, stabilizer rings, accelerators, hole shutters, 100 marbles and a cotton storage bag. Marbles gain momentum as they spin around the spirals, and the curve rails let kids build cyclone-style runs. A guidebook shows endless layouts, and the set works with every other Quadrilla set. Builds spatial thinking and early STEM skills, with a German-engineered design inspired by the Da Vinci circle.
