3D Marble Run Puzzle

Description These high-quality model kits are self-propelled clockwork, no battery needed. Some wax and the tools provided will make them move smoothly. All pieces are pre-cut, easy to pop out, all you need is time and patience, putting them together one by one following the instructions, you will enjoy every step of making these amazing puzzles. Perfect toy set to build up a positive relationship with your children. Suitable teaching for children. Great stress reliever for adults. Specification Material: Wood Theme: Buildings Gender: Unisex Type: DIY