This is a set of 24 colored pencils by Ad To Mizumori, from about 50 years ago. As this is a very old item, there are signs of dirt on both the case and the pencils. There is no warping, and the lid closes properly. Although it is a set of 24 colors, 9 of the pencils are not from the Korin brand but are products from Mitsubishi Pencil and other manufacturers. Additionally, there are many names written by sharpening on the ends of the pencils. Please consider this item if you are interested, understanding the above points. Brand: Korin Number of colors: 24