This retractable pen is formulated to combine the best qualities of gel and liquid ink. The permanent ink won't smudge, smear or glob on the paper. Permanent ink is formulated as a superior combination of liquid and gel. Designed to produce no smears, no smudges and no globs. Metal tip is medium point, measuring 0.7 mm and produces smooth lines. Textured grip works to decrease fatigue while writing and provides greater overall comfort. Refillable - designed to be used repeatedly, helping you avoid single-use disposables and potentially save money.