Quickly cover large surfaces and produce clean lines with this broad paint marker. Posca markers can be used on almost any surface so you can express your creativity freely. The opaque matte finish paint covers well, can be overlaid when dry or used like watercolour when mixed with water. Technical specifications:Ink: non-toxic, water-based, alcohol, solvent and odour-free, blendable, quick dry formulaUse and care: no primer required, for use on all surfaces, erasable from non-porous surfaces (glass, metal), replaceable water-rinsible tip