These Uni Pin Fineliners are perfect for drawing and drafting thanks to the Uni Super Ink which is permanent, waterproof and fade-proof. These markers write super fine lines from a strong tip which will last a long time without spreading. The fineliners have a window cap which displays the point width so you can easily find the liner you are looking for. - This pack contains an assortment of nib sizes including 0.03, 0.05, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8mm as well as a Brush tip nib. - They are a great option for drawing, sketching and drafting. - The window cap displays the point width for easy identification.