Dry-safe ink can be left uncapped for days without drying up. Smudge-proof, waterproof, odourless and quick drying. Convenient clip cap, pressure resistant locked tip. Lightfast - black and green as well as being weatherproof. Line width - chisel tip 2.0mm or 5.0mm. Also available in Wallets of 4 assorted colours (red, blue, green and black).