Need ink? Our Ultimark .5 FL. OZ Ink Refill Bottle is just what the stamp doctor prescribed! Just because you run out of ink, it does not suggest that it's time to toss it out! Often times all a stamp needs is just a slight bit of ink! A little goes a long way and before you know it, your stamp will be back to leaving clear impressions in no time. Please remember that this ink is for Ultimark brand stamps only. Do not use in other self-inking or pre-inked stamps!