Posca Paint Marker PC-5M 1.8-2.5mm Mono Tones Set of 4 is an ideal set for beginners, amateurs and professional artists alike. POSCA markers use fibre tips which make them ideal for all types of art and craft, they can be used on most surfaces including paper, card, metal, plastic, glass, stone, canvas, fabric, etc. These markers use water based pigment ink to produce a poster-paint like effect, with no odour or smell. Water resistant once dry and also fade resitant, they produce opaque and vivid colours, which you are able to blend and the ink doesn't feather or bleed through paper and once dry you can also layer, making POSCA markers extremely versatile.