School Smart blue gel and ink pens have a hybrid design to give you the best writing experience. The retractable pens offer high-performance ink technology and a quick dry all in one convenient, comfortable design. Smear-proof and smudge-proof liquid gel ink dries rapidly, allowing you to close up notebooks or seal up letters instantly without worry. A medium-sized nib is 0.7 mm to allow for all-purpose writing. The spring-loaded ink cartridge retracts and extends outside a protective housing, and the clear barrel allows you to see exactly how much ink is left. Choose our hybrid gel ink pens for all of your writing needs.