Uni Pin Drawing Pens/6 Assorted Tip Sizes, Uni Pin Technical Fineliner Pens, Pack of 6 Assorted Tip Sizes, Black Ink Description Color:Blue This set of 6 Black Uni Pin Fineliners 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 Fineliner 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 Uni Pin Fineliner a great art tool as work can be displayed without fading even under continuous exposure to light. Uni Pin Fineliners are ideal for graphics and technical drawing. Features: 6 black Uni Pin fibre tip pensThis set of 6 Black Uni Pin Fineliners includes a 0.05mm, 0.1mm, 0.2mm, 0.3mm, 0.5mm and 0.8mmWater-resistant, lightfast inkLong, metal-clad tip - especially suitable for use with rulers and stencilsErgonomic grip zone and pocket clasp Product Details: Part Number: 1Item Weight: 1.6 ouncesProduct Dimensions: 8.5 x 4 x 0.8 inchesItem model number: SG_B00F38T9C4_USColor: BlueItem Package Quantity: 6Tool Tip Description: Ultra FineBatteries Included?: NoBatteries Required?: NoShipping Weight: 5.6 ouncesDate First Available: August 15, 2011 Payment We accept Paypal payments only. Sales tax may be applied to your purchase as we possess sales tax certificates for all states we collect sales tax in. If your state is one that we charge sales tax in, you will see the sales tax charge at time of checkout before you submit payment. Delivery Expedited shipping is free. Handling time on our orders is normally between 1-2 business days. Your order should reach you within 1-3 business days. We do not ship to AK, HI, PO boxes, or APO addresses. We're not responsible for any incorrect or undeliverable addresses. We only ship to the confirmed Paypal address. We don't accept requests to change shipping addresses post purchase. We do not ship to AK, HI, PO boxes, or APO addresses. We are not responsible for any incorrect or undeliverable addresses. We only ship to the confirmed Paypal address. Please note that manufactures update their packaging from time to time and that the packaging images shown in our product may vary from what you ultimately receive however be assured you are receiving the identical contents you ordered. Return Policy You may return new, unopened items within 30 days of delivery for a refund, and a restocking fee may apply. Return shipping fees are not refundable. Message us for return instructions if you have questions. Support & Feedback We take our reputation seriously, we buy and sell online, so we understand the value of trust. If you are unsatisfied with your order, please contact us and we will work with you to resolve it to your satisfaction. Contact us via eCRATER messaging and we will respond within 1 business day. Our office hours are 8AM-4PM PST Monday-Friday. We thank you for your business!