EF510 Sleeping Car Double Set Cassiopeia & Hokutosei This is the Cassiopeia & Hokutosei sleeping car double set released in 2010. It features yellow wheels. One power car. The vehicles open up, allowing you to play with Plakids, making it a unique Plarail. Operation confirmed. Only simple home cleaning. No missing Plakids. Since it was played with, there are minor scratches and discoloration. The sticker on the power car is slightly lifting. There are brown scuff marks on the battery terminal (it currently works, but I don't know when it happened). It appears to be a discontinued product of a popular vehicle. If you have any concerns, I will add photos, so please inquire. Thank you.