Impact RT Retractable Gel Pens, Bold Point, Black Ink, Pack of 4. Pen"s hefty size allows greater control as it produces a thick, vibrant line on paper. Innovative auto-retractable tip withdraws into the barrel as you clip the pen to any surface. Ink is acid-free and fade- and water- resistant. Soft rubber grip for comfort and control. Gel ink combines the durability of a ballpoint with the smooth nature of a roller-tipped instrument. 0.6 inches long by 3.75 inches wide by 7.62 inches high. 0.19 pounds. UPC for this product is: 70530669015 Related search terms for this product include: uni ball, uni-ball, retractable pen, gel pen, ink pen.