Non-toxic, water-based POSCA markers are alcohol and solvent free with great coverage, blendability and opacity. Smooth flow promotes consistency, texture and continued optimal results. These versatile markers can be used on paper, glass, cardboard, wood, porcelain, metal, textiles, ceramics, plastic and more without priming (note that the markers will produce different results with a primer). The pen tips can be rinsed with water and some are reversible. 0.7mm ultra-fine, 1.0mm extra-fine, 1.5mm fine, 2.5mm medium, 8mm broad, 15mm extra-broad and brush.