* This selection of 3 Sakura Pigma Micron fineliners in black, cool gray, and light cool gray allows you to use gray tones to add even more shadows, depth, visual accents, and layers to illustrations, drawings, bullet jobs, etc. * Pigma Micron pens are permanent and water-resistant fineliners that are appreciated by many audiences. * The fine tip of this pen is ideal for technical and artistic drawings. * The Pigma Micron is the first disposable technical pen using archival quality pigment ink. * The ink does not bleed, feather, or bleed through on most types of paper.