so it stays visible and doesn't catch or flex when you're working alongside a ruler

You control the flow of ink by pumping the tip against your surface

Weight: 198g

Montreal and a train focus on Belgium

and clean sketch outlining

uni pin fine line pen light grey Size:0.1 so it stays visible andThe Uni Pin Fine Line Light Grey lays down a soft, cool grey rather than a strong dark tone, suited to faint shading, base sketch contours, or subtle drop shadows behind darker title text where a full black or dark grey line would feel too heavy. The tip is a steel guided polyacetal core for a steady, consistent line. The ink is uni ball's "Super Ink" pigment formula, archival and waterproof once dry, so it can sit underneath a watercolor glaze