This is a set of coloring books and colored pencils. You can use it right away. I bought this thinking I would use it, but my child has colored a portion of the pages in photos 4 and 5. The rest are clean. Watercolor pencils are a type of colored pencil. Generally, the commonly known colored pencils are "oil-based," but watercolor pencils are "water-based," and the core uses pigments that are easily soluble in water. Both have a similar shape and can be drawn on paper in the same way, but in the case of watercolor pencils, you can express a watercolor-like touch by dissolving them in water. As shown in the photos, there is some use, but they can still be used. Please do not purchase if you are nervous, have strict judgment, or intend to harass. Will be shipped in simple packaging.