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 0.1 mm, 0.2 mm, 0.3 mm, 0.5 mm and 0.8 mm. - They are a great option for drawing, sketching and drafting. - The window cap displays the point width for easy identification.