I'm selling these because I'm done with plastic models. Due to long-term storage, I tested all of them to make sure the paint comes out properly, and only selected those that worked (photo 9). There were sets with white cores, so I think I've hardly used them at all. * The black and white sides of the Real Touch Markers didn't work. Please check my profile and only purchase if you understand. I'm also selling other items, so I can offer a discount if you buy multiple items together.