Fluorescent Red Postal Ink: Tested in millions of cycles, for outstanding readability and performance, the SL-870-1 red ink cartridge optimizes the number of envelopes you can print with each cartridge, yielding 1000-1600 impressions
Compatibility: Specifically designed for PB New SendPro Mailstation Postage Meter (CSD1) Machine, ensuring full compatibility and stable printing performance
Vibrant Fluorescent Red: Featuring fluorescent red ink, printed documents are clear and eye-catching, increasing the visibility of letters or packages
Reliable Performance: This postage ink is easily read and will not prematurely dry up. It is also readable when wet so nothing will interrupt delivery