Callisto Retractable Gel Ink Pens, Medium Point, 0.7 mm, Transparent Black Barrel, Assorted Fashion Ink Colors, Pack Of 20 Smooth-flowing nouveau gel ink lends these Office Depot Brand pens an undeniably crisp and clean appeal. Optimized for effortless use, each of these medium-point roller pens features rubberized grips that help keep your hand comfortable as you write. Smooth-flowing gel ink writes smoothly and consistently. Nouveau gel delivers a clean and crisp overlay on your paper. Rubberized grip for comfort. Colorful grips will keep you writing in style. Pocket clip keeps it portable and always on hand. Assorted colors in pack include 4 black, 3 blue, 2 red, 1 magenta, 1 rose, 1 pink, 1 orange, 1 green, 1 lime green, 1 navy, 1 purple, 1 teal, 1 aqua, 1 light blue. Refillable ? designed to be used repeatedly, helping you avoid single-use disposables and potentially save money.