Refill your stylus pen with a cartridge from this pack of 3 roller ball ink refills. The Black ink refills are quick & easy to fit into your 2-in-1 Snugg Stylus. With the soft roll technology used to create these refills you'll always enjoy your writing experience. Simply unscrew the barrel of your stylus, remove the empty cartridge & replace with one of these made to measure refills.