Staedtler triplus permanent fineliner. Top-quality permanent pen with superfine, metal-clad tip. Ergonomic triangular barrel for effortless and fatigue-free writing. DRY SAFE: can be left uncapped for several days without drying up (test ISO 554). Waterproof, permanent ink. Write-out length approx. 1000m. Line width approx. 0.3 mm.
