EnerGel X retractable gel pens contain super-smooth EnerGel ink. High-performance ink technology combines the best qualities of liquid and gel inks for a super-smooth writing experience. Liquid gel ink dries so fast that even left-handed writers love it - no smears, no smudges, no globs. Latex-free grip provides maximum comfort. Color-tinted barrels with curved clip design match the ink color. Gel pen is refillable with Pentel's LR10 metal tip refills.