The original Pilot Fineliner marker offers a precise writing experience with quick-drying, water-based liquid ink. Its 1.2mm durable polyester tip, protected by a metal sleeve, prevents splitting and ensures long-lasting performance. The fine tip produces a 0.4mm line, ideal for detailed drawing, note-taking, or lettering. Fine line writing instrument: perfect for precise writing and drawing. Durable tip: polyester protected by metal to resist wear over time. Quick-drying ink: water-based and smudge-resistant for clean lines.