This set of 8 Black MyLifeUNIT Fineliners includes a 0.03mm, 0.05mm, 0.1mm, 0.3mm, 0.5mm, 0.8mm, 1.0mm and Brush technical pen, ideal for producing different line widths when drawing. MyLifeUNIT Technical 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 water is spilt 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 MyLifeUNIT Technical a great art tool as work can be displayed without fading even under continuous exposure to light. MyLifeUNIT Technical are ideal for graphics, manga, design, illustration and technical drawing.

• Set of 8 needle drafting pens, black ink
• This set of 8 Black pens includes a 003(0.03mm), 005 (0.05mm), 0.1 (0.1mm), 0.3 (0.3mm), 0.5 (0.5mm), 0.8 (0.8mm), 1.0 (1.0mm) and Brush. Water-resistant, lightfast ink
• Ergonomic grip zone and pocket clasp, Achieved universal appeal and is carried by technical professionals, artists and crafters
• For use in the Silhouette, professional in areas of manga, graphic, design and illustration.
• Unique liquid ink formula maintains consistent flowing strokes, manufactured using the highest quality parts

Set of 8 needle drafting pens, black inkMyLifeUNIT