The Pilot G2 05 is a smooth-writing retractable gel rollerball with a comfortable cushion grip and archival acid-free ink. It is a renowned best-seller worldwide. The 0.5mm ball writes a 0.32mm line. Its smooth gel ink provides a blob-free and vivid writing experience from start to finish. Features a cushioned ergonomic grip, refillable tungsten carbide ball, and a 0.5mm tip that gives a 0.32mm medium line. Ink color is Black.