These are ideal pens for drawing and illustrating and suitable for technical and artistic work. The unique Sakura Pigma ink will not bleed through paper and is indelible and lightfast, the ink will dry to a natural PH. Pack contains 6 fineliners, 1 brush pen and the new everyday pen. Sizes included for the fineliners are 005, 01, 02, 03, 05, 08. The brush pen will give various widths. The new everyday pen has a durable plastic nib (PN) and offers a smooth writing experience in a range of colours, and a fine to medium (0.4mm - 0.5mm) line width can be achieved, depending on the pressure applied. Equally good for fast as well as slow writers, and left-handers as well as right. All pens are black ink with a archival quality that is waterproof, fade and chemical resistant and will not smear or feather when dry.