POSCA Water-Based Paint Markers can be used on almost any surface you can dream up: paper, glass, cardboard, wood, porcelain, metal, textiles, ceramics, plastics and so much more. Their felt, bullet tips are also versatile, allowing you to produce neat and precise lines when outlining and bold lines when filling in spaces. Water-based, alcohol- and solvent-free, opaque paint covers surfaces well, is blendable, dries quickly and can be layered once dry. Ideal for beginners and professionals alike, these markers are a fluid and fun choice for arts and crafts projects, retail window signage, automobile windshields as well as interior and exterior decor projects. As an added benefit, their tips can be rinsed with water to keep them intact, allowing you to blend without fear of ruining the color of any given marker. Non-toxic, light-fast and waterproof-paint can be scraped off most nonporous surfaces, such as glass, while remaining permanent on porous surfaces, such as paper. Marker Ink Type: Permanent; Marker Tip Type: Bullet; Marker Tip Size (text): Fine; Marker Tip Size (numeric): 0.9 mm/1.3 mm.