【Abundant colors】 A set of 40 colors with vivid colors such as metallics and fluorescent colors. It is a medium thickness that is convenient for writing and illustration production, and painting large surfaces. (nib: 0.7mm-2mm) The body is ergonomically designed, easy to grip, and not tired even after long time use. * 10 replacement cores included 【Selected ink】 High-quality water-based ink is adopted. It is highly volatile and quick-drying, so you don't have to worry about it rubbing and getting dirty. Since it uses ink that is not toxic to people and the environment, it can be used safely by both children and adults. [Compatible with various materials] Compatible with various materials such as ceramic materials such as plates and mugs, paper, wood, cloth, canvas, glass, plastic, metal, stone, etc. It can be widely used for decorating DIY and message cards.