POSCA paint markers are an excellent multi-surface, creative pen. The uni POSCA extra broad chisel tip Paint marker contains water-based pigment ink which is lightfast, water-resistant, and will write on almost any surface. The PC-17K extra-broad, 17mm chisel tip is the go-to maker for large-scale artwork. Its XL size tip produces a strong, confident line and vivid colour. The Uni POSCA is also permanent and bleed-proof on paper and cards (as it absorbs into the fibres), and can be made permanent on the following:- Terracotta - by baking at 220°C for 45 minutes, then spraying with clear varnish- Porcelain – by baking at 160°C for 45 minutes, then spraying with clear varnish- Glass – by baking in the oven at 160°C for 45 minutes then spraying with clear varnish- Textiles – by ironing on the reverse- Metal, plastic and wood – by spraying with clear varnish Specification Uni POSCA Marker Pen PC-17K Extra-Broad Dries quickly Water-based marker Extra broad chisel tip Full opaque matt finish Water-based Paint Marker Choose from the entire range of 10 colours Writes on... wood, textile, cardboard, metal, glass, stone, plastic, ceramics Products opaque, vibrant colour writing on paper, plastic, glass and fabric Excellent for illustration, posters, sign writing or any of your other artistic needs