Windmill 3 in 1 Construction Set

3 in 1 construction set comes with 50pcs blocks. Kids can build a windmill, or a small windmill, and a projector. Both windmills can be manual powered. Turn the handle, then the windmill will rotate correspondingly.

Come with detailed step by step guide, it is an easy construction and sensory toy for kids to learn mechanical principles, through assembling & observing gears moving from static to dynamic.