ROBOTIME Wooden 3D Puzzle - Ball Race Track LG503

Set for building a wooden track on which metal balls overcome a variety of obstacles. The model is driven manually by turning the crank mechanism. The kit is made of high-quality plywood and comes in the form of sheets with pre-cut and numbered parts, which must be separated from the blank before assembly, and then joined without glue, according to the included instructions. The package contains 10 metal balls.