Electric light powered by Mickey Mouse button battery, with a blue hat. The button battery is included, and I've also included a photo of it lit up. (It's been since elementary school!) The battery seems to have a slightly poor connection, so the light is dim, but once it turns on, it stays on. Apparently, it depends on the angle. When you hold it in your hand, it emits a blue light. I'm not sure if it's due to the contact or the button battery itself, but it does light up. It used to be brighter, but it seems to have deteriorated over time, so I'm hoping someone will cherish it. It can also be used as a light in the dark. I've kept it displayed on my desk. - Design: Mickey Mouse shape - Material: Transparent glass material - Color: Blue hat and string - Usage: Can be used as a necklace Thank you for looking.