This Pentel EnerGel X pen features a transparent barrel with a soft rubber grip for comfort in use and a convenient retractable design. With revolutionary liquid gel ink the EnerGel formula is quicker drying and smoother flowing than ordinary gel ink giving a similar sensation to liquid ink. The 0.7mm tip writes a 0.35mm line width for general use at home work or at school. This pack contains 12 pens with black ink. Contains quick drying EnerGel Ink Comfortable rubber finger grip Contains 84% recycled material (based on total weight of pen excluding ink and refill) Medium 0.7mm nib Push button retractable nib Barrel colour matches ink colour Ink colour: Black Pack of 12