The Posca PC-1MR paint marker has an extra fine calibrated point (0.7 mm). The pigment-containing ink is water-based and odorless to use. Can be used on paper, plastic, glass, textile, wood, stone, porcelain, etc. Ideal for precision work. It resembles acrylic paint, is opaque. Without alcohol and solvent, odorless, quick-drying and does not penetrate the paper. It is removable from a smooth surface such as glass.