Think pens, think Pentel! EnerGel formula creates revolutionary low viscosity liquid gel ink, which is quicker drying and smoother flowing than ordinary gel ink. It also gives a similar sensation to liquid ink. The ink dries quickly and produces smudge-free results on paper or hands. Therefore, it is suitable for both right and left-handed writers. The 0.5mm needle shape tip give approx. a 0.25mm fine line width. The EnerGel X Needle Retractable has a rubber finger grip with grooved finger print support. Also, it has a transparent barrel for easy view of remaining ink as well as a handy clip. The outlook of this pen is stylish and beautiful. In addition, the it is environmentally friendly as it is made from 84% recycled material.