This is a pre-assembled plastic model set of Danball Senki Elsion and the Lighting Saucer. I assembled and displayed them for a while. The Elsion has no discoloration or stains, but the Lighting Saucer has some discoloration and is missing the controller. I'm not sure if it still works with the batteries inside. Please purchase only if you understand the condition. I am also listing this on other sites, so please comment before purchasing. Feel free to ask any questions!