Sakura Koi Color Brush Set 24 Flexible Nylon Nib.Used in fine art, illustrations, doodling, journaling, Lettering, card marking, scrapbooking supplies. The odorless, water-based solvent facilitates smooth blending and layering of colors. The 24 color set is organized in a durable, translucent storage box. Make thin and bold lines with one flexible brush tip. Made in Japan