【ROKR 3D Wooden Marble Run Puzzle】Build a 294-piece wooden marble run with 10 marbles and a crank-driven gear system. Watch marbles roll through different channels for a dynamic display.
【Visually Unique Design】With black-grey wood, metal nameplates, and acrylic pieces, this model is both stylish and functional, allowing you to see the marbles in action.
【Easy Assembly】Includes a detailed instruction booklet and spare parts sheet for smooth assembly. Approx. 7 hours of concentration required for completion.
【Perfect Gift】An advanced STEM puzzle, ideal for wood enthusiasts and those who enjoy a challenge. A unique gift for Christmas or birthdays, perfect for all ages.