This is a set of three Capsule Plarail motorized trains: EF81, EF66, and N700. These are not wind-up toys; they require a size D battery, so their operation has not been confirmed. They have been opened, but they have been stored in a dark place, so I think they are relatively clean. However, please understand that these are used items before purchasing. - Model: EF81 - Model: EF6612 - Model: N700 Thank you for looking.