uni-ball Posca 3M 0.9-1.3 mm Bullet Shaped Paint Marker Pen | Reversible & Washable Tips | For Rocks Painting, Fabric, Wood, Canvas, Ceramic, Scrapbooking, DIY Crafts- Pack of 1 (Loose)uni ball Posca 3M Bullet Shaped Marker Pen, Tip Size 0. 9 1. 3 mm, Mechanism Click off Cap It contains water based pigment ink which is lightfast, water resistant & will write on almost any surface. Posca markers are non toxic, which means our pigment formula does NOT contain alcohol like other markers, each Posca marker is water based which means its alcohol free, waterproof & still lightfast. Posca paint markers have been professionally tested &