Music Park 3D Wooden Puzzles for Adults & Teenagers Machine Marble Run Wood Model Building Kits Science Educational Toys for Kids Gift Age14+

This is a circular rolling track marble 3d wooden puzzle model toy,unique DIY hand-assembled marble track model. With laser cutting technology,no burr,smooth touching,no deformation.with very tight tolerances and good machining. When you press the motor switch, the balls start rolling down the track one by one, and the light starts to shine around the castle. The package contains detailed installation instruction in English and tools (excluding 4 AA batteries).It is convenient to assemble without glue. Nice choice as Birthday Gifts, Christmas Gifts, Thanksgiving Day Gifts, Gifts for Back to School, Valentines Day Gifts for boys, girls, friends, family members.