When rolled by hand, the built-in generator produces electricity and the light turns on! The light shines yellow when rolled forward and red when rolled backward. It can be connected to a regular Plarail with the rear coupler and run. Condition: There are scratches. I would like to sell it to someone who understands. In addition, I am selling other Plarail items. If you purchase them together, I will offer a discount, so please take a look ♡ 510