3D Wooden Puzzle Marble Run DIY Assemble Mechanical Gear Building Game Science Engineering Model Toys for Child Student

FeatureOperation Ways Find the corresponding parts on the board remove the parts along the laser cutting edge do not use too much force And follow the instructions splicing parts for model assembly After assembling it can be mechanically oscillated to drive the steel ball to roll through the mechanical gear levers and rails Meaningful Education Project Logical thinking ability hands on ability and concentration can be exercised during the assembly process suitable for all ages 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 Premium Material Made of high quality recyclable wood resistant to falling and durable smooth and burr free The puzzle can be assembled with no glue easy and firm installation Just show your operational ability right now 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 SpecificationType Wooden Mechanical Ball Roller SetMaterial WoodSize 200 x 160 x 100 mmWeight 250 gPackage Included1 Wooden Mechanical Ball Roller SetNoteThe picture shows the finished product The actual product received needs to be assembled by yourself