Sakura Color Products invented and patented Pigma ink in 1982. When artists want dark, bold pen strokes that last, they turn to Pigma® Graphic? and archival Pigma® ink. The three large pen nibs are designed to meet the specific needs of illustrators, cartoonists, and manga artists by enabling a broad range of illustration techniques. The 2mm level chisel nibs can make both thin and thick lines to achieve stylized strokes and creative lettering. Pigma ink has become the standard for what is defined as reliable, permanent, archival quality ink.