Onyx is crafted with 73% post-consumer recycled electronics. A value-positioned rollerball that delivers the silky-smooth glide of a fountain pen without smudging. uni Super-Ink™ technology protects against water, fading, & fraud.

Product Description

The uni-ball Onyx features a non-textured grip for premium comfort and control. With a sturdy, conical metal tip, the Onyx won’t bend or break when increasing the amount of applied pressure. The black ink produces clear, sharp lines, offering enhanced readability, while the fine-point tips make it easy to draw precise designs, text and other graphics.


  • Fine, stainless-steel point writes as smoothly as a fountain pen without the mess.
  • Made from 73% post-consumer recycled electronics.
  • Features innovative Super Ink™ that protects against water, fading, and fraud.
Point Sizes
.5 mm
.7 mm
Ink Colors

Exceptionally Reliable

The uni-ball Onyx consistently produces rich, vibrant colors with minimal pressure applied. Formulated for smooth ink flow, the Onyx ensures that every word is brilliantly communicated. With its slim shape and streamlined polished body, the business-focused design is a pleasure to hold. Ideal for everyday use, the uni-ball Onyx is perfect for people who spend a lot of their day writing.

Archival-Quality Super Ink™

Featuring innovative Super Ink™ technology, the uni-ball Onyx has archival-quality pigment ink that offers extraordinary levels of water, chemical, and light resistance. In comparison to standard washable inks, the acid-free Super Ink™ stands the test of time by embedding itself into the fibers of paper–making the ink permanent. Perfect for writing checks or signing important documents, Super Ink™ is ideal for anything that needs to stay put.