Unique Design: The DIY wooden building toys can be painted and decorated to make them unique, and the finished product are very suitable for display on a table, shelf or showcase in a children's bedroom, playroom or study area. Stimulate childrens interest and curiosity: With various 3D wooden puzzles, motor, gears, plates, shaft and screws for children to assemble 4 different styles of model! Kids will be excited and proud of their own model that actually moves.