Staedtler's Lumocolor 313 Permanent Pens feature a versatile fiber-tip nib that can be used on almost all surfaces, including metal, glass, wood, stone, paper, etc.. They dry in seconds, are lightfast and can be left uncapped for days without drying out. The ink is smudgeproof, waterproof, and airplane safe.
Available in two sizes: Super Fine .4mm, and a broad point chisel tip that provides a 1.0 - 2.5 mm line depending upon positioning.
