COBALT #12 STRAIGHT MAGS

One may ask what's the difference in our cobalt cartridges vs our already awesome membrane cartridges we have been selling for years ?
Biggest difference is the square needle bar which provides a much more stable (less flop , less spitting of ink ) cartridge

Also our new design of the cartridge shell , provides tremendously more fluent ink flow
High quality Japanese needles
Safety membrane
Eo gas sterilization
Individually blister packed
20 cartridges in a box