This Red Pre-Inked Stamp shows the text "FIRST CLASS MAIL" and displays an impression size of 1/2" x 1-5/8". The laser engraved rubber generated in our production factories makes this pre-inked stamp enduring for years and years of use usage. Makes approximately 100,000 ink impressions before re-inking becomes needed. Please remember to utilize Xstamper Red Refill Ink solely. See below to add a bottle of Xstamper ink with your order. Instructions to Re-Inking your stamp: Take off the handle and apply three to 4 drops of ink on the opening of the stamp. Suggestions: Opting to re-ink your stamp over night may allow the ink to fully absorb into the stamp pad.