Sigma (1.8 - 1.16) Review

Produces a 1.8 mm to 2.5 mm broad line, which varies depending on writing pressure.

Vivid, opaque, water-based, and non-toxic pigment ink. Sigma (1.8 - 1.16)

Waterproof and lightfast; the ink is removable on nonporous surfaces (like glass) but permanent on porous surfaces (like paper). Produces a 1

Based on your query, the reference describes the line width feature of the Uni Posca PC-5M Go to product viewer dialog for this item. Sigma (1.8 - 1.16)