The PITT Artist Pen Soft Brush Waller Shades of Grey Set from Faber Castell includes 6 pens in colours cold grey I, 232 cold grey III, 233 cold grey IV, 235 cold grey VI, 157 dark indigo, 199 black. These soft brush pens are easy to use and do not bleed through the paper so you can draw, sketch and create with precision. The pens are high pigmented with SB tips. The ink is waterproof and permanent, so you can leave a lasting mark.Features & Benefits Includes 6 soft tip pens Waterproof, odourless, acid-free & PH neutral In 6 different shades Specification Tip Size: SB very soft brush tip