Inka mobile Pressurised refill cartridge (BLUE):
Pressurised refill cartridge for Inka mobile pens (Blue)
Simply unscrew and replace the empty cartridge. Ideal for Geocaching, will write on 99.99% of logs even in the wet. No need to remove you gloves either just use the touch screen stylus.
The shorter refill fits the Clip pen & Stylus the longer refills fits the Pen & Stylus with integrated carabiner.