Make a strong strident point every time with these Uni-Ball Classic Rollerball Pens SAN60153. They offer premium liquid ink and a black barrel with a strong metal clip so you can easily keep them attached to your pocket notebook and more. These Uni Ball roller pens contain Uni Super Ink which is specially formulated to become trapped in paper helping prevent criminal check washing and other document alteration. This quick-drying ink also prevents smudging. Archival-quality acid-free ink is ideal for documenting and record-keeping. Ink color is indicated by tip and dot on cap. Each of these Uni-Ball Classic Rollerball Pens SAN60153 have a 0.5mm micro writing point for precise writing which also makes them ideal for drawing and sketching.