This graphic marker is designed for fun doodles, comics, and comic illustrations or calligraphy. The brush group can be carried with you during travel or used for close work.Our permanent marking pens are made of high-quality ink and materials, which are non-toxic, odorless, and have good paint fluidity. The soft felt tip of the pen transitions between coarse strokes and fine lines without hesitation.Widely used: Thick head, precise highlight and underline. Can be used for drawing/sketching on glass, metal, photos, paper, etc. Thin head is suitable for design and drawing of common colors such as interior, landscape, animation, products, industry, architecture, environmental art, etc.Color coded bottle caps are easy to identify and use. The brightly colored markings are durable, fade resistant, and well integrated, adding a three-dimensional feel to your artwork.Portable storage design: The suitcase makes it convenient for you to travel and store pens. The bottom is equipped with a high-quality pen holder, making it easy to find the color you need.