ExcelMark Premium Stamp Refill Ink, Black, 2 Ounce Bottle BLACK REFILL INK - for use in ink pads and self inking stamps, including ExcelMark, Trodat, 2000 Plus, Trodat, and other self inking stamp brands Water-based formula Produces crisp, clear image impressions Convenient, 2 ounce size Ideal for a variety of applications, from office to crafting For use in ink pads and self inking stamps Water-based formula Produces crisp, clear image impressions Convenient, 2 ounce size Ideal for a variety of applications, from office to crafting