3D Wooden Puzzle Ball Roller DIY Assemble Marble Track Building Mechanical Gear Kit for Children Educational Toy Birthda

Feature Operation Ways With turning the crank of the handle firing up the gears and you can see the marble was carried up to the top and release down the track DIY Experience It is a self assembly model kit and everything you need comes in the package you do not need any additional materials Building a model kit will stimulate your child s ability to plan and build their own thinking structure like a true engineer Meaningful Education Project The handicraft model can open a new world of creativity knowledge and pleasure for kids It gives an opportunity to explain gravity gears designs machines engines and many other physics concepts Wonderful Gifts A good choice for someone who is a DIY lover And it must be an ideal and creative gift to surprise friends families It looks great and pretty to show on your table makes your home more beautiful Specification Item Type Wooden Mechanical Ball Roller SetMaterial WoodenSize 160 x 120 x 120 mmPackage Included 1 Wooden Mechanical Ball Roller SetNote The picture shows the finished product The actual product received needs to be assembled by yourself