FeaturesWrites on almost any surfaceFine tip writes a line width of 0.7mmInk is heat proof, frost proof, waterproof and lightfastBlack permanent inkPack of 10The Stabilo Write-4-all Fine Permanent Marker will write on almost any surface, including glass, metal, plastic, wood, photos, foil, ceramics, card, CDs and DVDs. The fine tip writes a line width of 0.7mm and the permanent ink is heat proof, frost proof, water proof and lightfast. This pack contains 10 fine black markers.