iStamp Refill Ink 1/2 oz // Extend The Life Of Your iStamp // BLACK INK Genuine iStamp Refill Ink *** For use with the iStamp pre-inked stamp only Maintains optimal performance of iStamp rubber stamps Will not clog iStamp die plates Special formulated oil-based ink that lasts 30,000 impressions // Perfect for larger sized stamps as well as mass amounts of iStamps