Whether you want to paint monochrome artworks or simply add shadows to colorful illustrations, this Clean Color Real Brush Warm Gray pen set provides a range of Gray colors in warm tones. This 4x7.5 inch set includes 6 fine bristle tip bristle tip brushes ideal for painting smaller details, but can also cover larger areas as well, especially when you use water or a Blender to blend it out. Ink is water-solluble and can be lifted easily after drying.