The uni-ball Retractable Pen features specially formulated ink that stays trapped in paper to prevent fraud due to ink alteration. The uni-ball black gel pen includes a 0.7 mm, stainless steel retractable tip for smooth and smudge-free writing. It has a textured rubber grip for enhanced comfort for continuous writing. This water-resistant gel pen is refillable for your convenience. It comes with metallic accents and a pocket clip. The package contains eight refillable gel pens. These black gel pens have a 0.7 mm tip, giving them superior precision, which ensures that your handwriting won't be obscured by thick black blotches. At the same time, 0.7 mm is wide enough that the writing won't be too faint, and will stand the test of time. The black gel ink is specially formulated to prevent it from drying out, which reduces blockages and blotting or uneven writing.