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Uni Pin Fineliner Pens


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Uni Pin is a professional-grade disposable fineliner for graphic art, drafting, sketching, writing, and hand-lettering. If you've tried cheap fineliners and been disappointed by fragile tips and inks that fade, Uni Pin is an affordable upgrade that solves those problems. Available in a wide range of durable felt tips, Uni Pin doesn't get squashed easily or change in width as you use it.

Uni Pin uses Mitsubishi's Super Ink technology, which offers high-intensity, waterproof, and fadeproof lines suitable for work that needs to last forever. It dries quickly, so smudging is kept to a minimum when you're erasing your pencil marks.

Pin fineliners also offer a unique cap design that we really like. There's a transparent window in each cap so you can tell at a glance what nib you're picking up. A sturdy metal cap is attached to the top, and the cap clicks securely onto the back of the pen so you won't lose it. Like other brands of disposable technical pens, Uni Pin is printed with the nib size on the top of the cap.

Available in all sizes in black; select sizes also available in sepia and two shades of grey. Made in Vietnam.



We ship all orders from our store in St. Louis, Missouri. 95% of orders are processed in 1-2 business days (Wednesday through Sunday). Shipping to the United States is always free for orders over $59. For orders under $59, domestic shipping rates start at $3.50. You can calculate your shipping cost in the cart or at checkout. For St. Louis residents, we also offer free curbside pickup. Just select "Pick Up" on the first page of checkout.


If there's a problem with your order, please contact our customer service team at If your order is damaged or defective, we will send you a prepaid return label and replace the item immediately. If you change your mind about an order, you can ship it back to us in new condition for a refund or exchange. However, if there is no error on our part, we cannot refund shipping charges or pay for return shipping. The deadline for all returns is 30 days from the delivery date. All clearance items, dated calendars and planners, and grab bags are non-refundable.

You can read more about our policies and procedures here.


We are an independent retailer trusted by artists since 2015, and our expert staff are happy to help you with any questions you might have about our products and services. We love helping our customers choose colors, build gift packages for friends, and get started with new tools and materials. We can also take special orders for items not listed on this site.


(314) 884-8345
10 AM to 5 PM Central Time,
Monday through Friday

Uni Pin Fineliner Pens

Uni Pin Fineliner Pens