Uniball 6-Piece Fineliner Drawing Pen Set, Assorted Tip Sizes, Black

This set of 6 Black Uni Pin Fine liners includes a 0.05mm, 0.1mm, 0.2mm, 0.3mm, 0.5mm, and 0.8mm technical pen, ideal for producing different line widths when drawing. Uni Pin Fine liner Pens are ultra-fine markers with smooth flowing ink that features superior water resistance, so once it dries, the ink will not smear, even if the water is spilled on the page. Absolutely waterproof, non-fading, lightfast, and with wonderful tips with which to draw.

No idea if they are archival but they are supposed to be acid-free which simply means that the ink is PH neutral and should not cause your paper to deteriorate over time if you have gone to the trouble of sourcing archival papers on which to work. Being light resistant makes the Uni Pin Fine liner a great art tool as work can be displayed without fading even under continuous exposure to light. Uni Pin Fine liners are ideal for graphics and technical drawings.

• Pens Type: Porous-Point Pens
• Writing Supplies Type: Pens & Refills
• Stationery Office Brand: Uniball