ROKR Marble Run 3D Wooden Puzzles for Adults – Mechanical Model Kits for Adults Hobbies Toys for Adults Gifts for Men…
$59.99
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【Cool Marble Maze】A challenging model kits to build with 294 pieces and 10 steel marbles. Compatible with all accessories and see-through arcylic tracks. It requires close concentration and patience to assemble. Final built of 12.8×8.4×9 inch.
【Driven by Gears】The 3D puzzle connects different tracks by gear trains, including a waterwheel, flip-flop-splitters, funnels, S-turn and U-turn slides, trap-doors, gradient slides. Just crank the handle and activiate the roller coaster!
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