Penflex Fineliner Pen – Fine Tip: The pen has a fine 0,3mm or 0,5mm tip, ideal for creating small lines, details, and text, Vibrant Black Ink: The pen uses quick-drying, water-based blue ink that flows smoothly and consistently, Durable Design: The pen is built to last, with a sturdy construction that withstands regular use, Ideal for: The Penflex Fineliner Pen is suitable for various applications, including: – Art and illustration – Writing and calligraphy – Technical drawing and design – Office and school use