PITT ARTIST PEN BLACK WALLET OF 4

Pigmented drawing ink; High light resistance; Water-resistant, permanent; Odour-free, acid-free, pH neutral; 4 line widths in case: S = 0.3 mm, F = 0.5 mm, M = 0.7 mm, B = brush width; Ideal for sketches and studies in ink; Available as individual pen or in various assorted sets