Integra 31966 Gel Stick Pen, Rubber Grip, 1mm, 12/BX, Blue Ink by Integra

This stick pen uses a revolutionary, oil-based gel ink that writes like a gel, lasts like a ballpoint. Bright intense ink is quick drying, waterproof, permanent, fade-resistant, acid-free, archival safe. Won't smudge or smear on most paper. Pen provides 450 meters (1,476') of consistent, scratch-free write-out from its 1.0mm rollerball tip. Cap, end cap and comfort grip depict ink color. Nonrefillable.