One of the standout features of the Uni Paint PX-30 is its oil-based ink

making it ideal for those who prefer subtle elegance

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

The markers are perfect for illustrations

uni pin fine line pen dark grey Ink and paint refills One of the standout featuresThe 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