Sarsumir 3D Wooden Puzzle Marble Run Wooden Model Kit Mechanical Model Building Kits for Teens Adults

• Well Designed and Engineered Mechanical Gear Run Model: The design of 3D wooden model kits intergrates the beauty of machinery and scientific exploration spirit. Complete assembling the model, input the batteries (not included), and observe the gear run with the balls moving along its given path.
• Wooden Materials and Sturdy Structure: The wood building mechanical construciton craft kits are made of reliable wood. They are well engineered and precisely precutted, every piece fits perfectly without deterioration or deformation after a long time. No blurs, the surface of these components is very smooth and safe for children and adults.
• Ready to Assemble and Easy to Build: Numberd pieces and detailed illustrated step-by-step English instruction of this building kit make it easy to assemble. You will only need to pop out the little wood pieces and follow the instructions to assemble.
• Good Educational Construction Crafts Set: 3D Model Kits to Build is suitabke for kids over 14 years and adults. Building the mecanical model can help to improve patience and hand-eye cooperation skills. It presents you the power of science, brings you self-accomplishment and inspire kids and teens' interest towards science and model building.
• Interesting toy - The wooden model kits allows children to exercise their hands-on skills while playing. The 3d wood puzzle is also for family activities and enhance parent child relations. Christmas stocking filler for boys girls kids, teens and adults. Exquisite handcraft work can be placed in living room, bedroom, study ect as decoration once completed.

Directions Detailed, illustrated English assembly instructions included