I used these for drawing architectural renderings. There are 12 markers in a clear case and 6 loose markers. I've confirmed that all the colors work, but please understand that they have been used. I've only used them a few times, so there are no noticeable scratches or stains. A set of 12 markers with a variety of colors. If you don't need the case, I can lower the shipping cost and further reduce the price. - Colors: C1, W1, T1, T3, T5, RV32, E25, E31, E34, E40, E51, Y23, BG10, B32, B34, G21, G40, YG63 Thank you for looking. #HalloweenOnMercari