About This

• 3D Puzzle Model Kit: This 3-D puzzles for adults has many playing methods waiting for you to explore, Transparent Acceleration Spiral and Vertical Reciprocating Lifting Stairs being the rep exclusive features, gravity powered making metal balls roll in a loop on this marble run
• This captivating model kit demands concentration and patience during assembly. Powered by gear trains, our marble run machine unveils the principles of physics. The Marble Run Chain Hoist mechanical model is not only a stunning kinetic sculpture but also an educational toy that entertains while it teaches
• Crafted from durable plywood, our wooden marble maze requires no glue for assembly. The precisely laser-cut wood parts effortlessly pop out and fit together seamlessly. Great instruction booklet with big and detailed pictures makes it easy to identify the parts and makes the instruction clear. There are spare parts sheet in case you broke critical pieces during assembly. Also you can contact us anytime. Patience is the key to successful construction
• Unique STEM Puzzle Gift: The marble run building kit doubles as a stunning kinetic sculpture and marble roller coaster. Perfect gift for Easter's Egg Day & Mother's Day & Father's Day & Children’s day & Halloween & Thanksgiving & Christmas & New Year & Birthday and all of the year's festivals