Rollerball pen offers premium liquid ink & a black barrel with a strong metal clip. Uni Super Ink is specially formulated to become trapped in paper, helping prevent criminal check washing & other document alteration. Quick-drying ink prevents smudging. Archival-quality, acid-free ink is perfect for documenting & record-keeping. Ink color is indicated by tip & dot on cap. Use clip to attach rollerball pen to pockets, notebooks & more. More from the Manufacturer