The OEM Pentel EnerGel retractable gel pen set includes 12 pens per dozen, featuring super-smooth EnerGel ink. This high-performance ink technology combines the best qualities of liquid and gel inks for a superior writing experience. The liquid gel ink dries quickly, making it ideal for left-handed writers with no smears or smudges. Each pen has a latex-free grip for maximum comfort, and the color-tinted barrels with a curved clip design match the ink color. These gel pens are also refillable.