Nite Ize IMR-03-R7 Inka Mobile Pen Refill - Blue

Inka pen refills are built to perform at any angle, any altitude, in all weather conditions, and even underwater. The ink pda stylus is built from Delrin, the material specified by most major pda manufacturers for use in stylus tips because of it's natural lubricity and durability. For use with nite ize inca mobile pen + stylus features:- pressurized blue ink cartridge that gives the ink & ink mobile their amazing ability to write in extreme conditions- engineered to write in all conditions - underwater, at any altitude, in temperature extremes and at any angle- writes smoothly and consistently.