/Size/The sizes of tortillion are #1, #2, #3; the sizes of blending stump are #1, #2, #3, #4, #5, #6, 9 sizes in total can meet your different need, help you better complete sketching, painting from nature and detailed painting. /Blending Pencil/The blending stumps are made of high quality compressed paper, after fine machining. It can be used as a paintbrush to quickly draw pattern, shade and texture, create shadows and dark areas with charcoal pencils and charcoal strips to make a hazy and soft effect on your drawing. /Sandpaper Pencil Sharpener/There is no need to use a pencil sharpener, just put the thickened and dull hybrid pen or charcoal pen on the sandpaper pencil sharpener and wipe it back and forth to make it sharper, continue to paint right away, which is convenient and quick. /Multiple Uses/The drawing tool set is a good choice for making shadows, dark areas and a good gift for children, students, artists, sketch drawing beginners, learners, etc.