By twisting the spring, this motorcycle wooden 3d puzzles can run up to 7~10 feets and you can see the engine pistons move! This ROKR puzzle will bring you an exciting and entertaining experience!

• Pieces: 420
• Assembly Time: 5HR
• Difficult Level: 4/5
• Assembled Size: H:10.6″(27cm)*W:4.6″(11.6cm)*D:6.3″(16cm)