Rollerball Pen: Bring dramatic dimension to your creations at any altitude with our roller ball pens; Our pens are designed to be airplane-safe so ink won’t won’t explode or leak. uni-Flow Ink System: Equipped with an exclusive ink system, our pack of pens delivers smooth-flowing ink and ensures a consistent, delightfully fluid writing experience uni Super Ink: Water- and fade-resistant ink helps you compose long-lasting, high-quality documents you can archive; Our ink pens offer protection against water, fading, and fraud Quality Construction: Equipped with a bend-resistant stainless steel tip and a tungsten carbide rollerball, our writing pens create smooth, skip-free lines; Convenient clip keeps your ink pen close Visionary Performance: Designed to work at any altitude, our black pens combine sleek design with elite performance to fit all your writing needs