The perfect combination of liquid ink and gel, our School Smart Gel Pens cover it all and make note-taking easy and bright. This style provides effortless writing and added comfort with its tungsten carbide ball tip and smooth, supple rubber grip. Medium-sized nib is 0.7 mm for all-purpose writing. Spring-loaded ink cartridge retracts and extends outside a protective housing. Clear barrel also allows you to see exactly how much ink is left. Economical pack of a dozen pens lets you keep them in various locations or sharing in the office or classroom.