For drawing of lines and borders in ink, watercolours and gouache, and can be used for applying masking fluid.
The variable line widths are set by a screw adjustment.
Found it great when trying to do straight lines of masking. Jane Simpson (Huddersfield, United Kingdom) on 13 Dec 2017
Great value of money Javier Matea Rodriguez (Alcala De Henares, Spain) on 1 Jun 2015
Ideal to use with masking fluid to get precise application. Bonia Rush (Newton Abbot, United Kingdom) on 17 Dec 2017