The markers are perfect for illustrations

making it convenient to maintain a perfect point while you work

If you’re looking for the best liquid watercolours for sketching

The pens are refillable and included in Pilot's BeGreen series

uni pin fine line pen dark grey Ink and paint refills The markers are perfect forThe Uni Pin Fine Line Pen in Dark Grey is a precise drawing pen with a 0. 1 0. 5 mm nib, perfect for detailed work like layering, hatching, stippling, and cross hatching. Its pigment ink is fade proof and water resistant, so you can use it with watercolors without worrying about smudging. The nib is supported by a steel casing for durability, and the pen delivers consistent, crisp lines. Its a reliable choice for artists, architects, and graphic