Pica Classic 520 permanent marker. Marker with bullet tip. Technical specifications: For permanent markings on almost any surface. Alcohol-based permanent ink. Water-resistant. Abrasion-resistant after about 10 seconds. Xylene and toluene free. "Dry-Safe: marks for up to 14 days without cap. Chisel tip: writing thickness 2-6mm. Ideal for use on the following materials Plastic Metal Glass Tiles, ceramics Wood, laminated wood Stone, concrete Tyres, rubber (dry) Rough wood (dry)