Liquitex water-based markers are designed for all kinds of creative projects, for users of all skill levels, on a variety of surfaces such as glass, metal, wood, ceramics, and many others. They feature durable 2mm tips that ensure consistent line quality and retain their shape. Store upright in a cool, dry place, away from direct sunlight. After each use, close them and make sure the caps are securely fastened to prevent the ink from drying out.