2ml sample of Private Reserve Infinity Black fountain pen ink, in a labeled plastic vial. Ink Samples are a great way to try out new inks without investing in the expense of a full bottle. 2mls is normally good enough to fill a converter 1-2 times giving ample examples of how the ink writes. 1 x 2ml Vial. The Private Reserve Infinity Ink collection uses the E.C.O. (Extended Cap Off) technology, a new advanced ink formula which allows a fountain pen user to leave their pen uncapped for a longer period of time without drying out. Your exact results will vary based on your specific pen, environment, etc, but our testing was pretty consistent to be able to leave a fountain pen uncapped for an hour and to have it start writing back up without issue. Private Reserve Inks Being one of the oldest fountain pen ink companies in the USA, Private Reserve Ink developed the concept of vibrant, saturated inks over 20 years ago and our colors speak for themselves. Private Reserve is now part of the Monteverde Family who are dedicated to maintaining the original colours and vibrancy. Private Reserve ink formulas are not hand batch/made but mixed in a method that adheres to the highest quality control standards for ink production in the industry.
