Noodlers X Feather
X Feather Black. (Bulletproof) 90ml Bottle of ink PH Neutral. Can be safely used in all brands of pens.
Will not feather on recycled or Moleskin paper. Longer Drying time than standard ink
All Noodler's Polar Inks are also classed as "Bulletproof", as well as such inks as "Lexington Gray", "Black", "Hunter Green", "Luxury Blue", "X-Feather", and "Fox Red". References to ink properties are generally printed upon the labels (with the exception of "X-Feather" - which is a white label issue with very little text).