【Mechanical Marble Run】Fascinating and well-produced marble run kit. After assemble it, turn the crank to have the steel balls move around in imaginative ways.Everyone enjoys checking the marble run when they stop by.
【Many Gear Gadgets】Consists of 10 marble steel balls, a wheel lifter, a stair stepper as an elevator, a spiral funnel, 2 straight rails, 3 curve rails, a flip-flop as a switch to drive marbles to 2 paths. Feel the charm of a roller coaster.
【Need to Assemble】254 pcs, made of pre-cut wooden sheets. Each puzzle is numbered, you just need to assemble it step by step with our detailed Illustrated instructions. It takes about 6 hours to finish with patience.
【Meaningful & Fun】This 3D wooden puzzle can trains powerful logical thinking skills, cultivates patience and encouraging imagination. Chanllenging and fun project to working together with family or friends.
【Decent Gift & Decoration】This Marble Run kit is an amazing gift & collections for teens, adults and unique puzzle lovers on Christmas, New Year, birthday, Valentine's Day and a perfect decoration for home, office, meeting room, coffee shop and bookstore etc.
【After-Sale Service】If you have any questions in assembling, such as damaged or missing parts, please feel free to contact us and we will reply you within 24 hours. We are always here!