– Premium Compatible Ink Cartridge – For Pitney Bowes Franking Machines  DM50i, DM55, DM55i, DM60, DM60i, DM60iR, DM65, DM65i, K700, K750 – Original Pitney Bowes part n. BLUE 797-0SB – Worldwide Postal Specifications Compliant – Cost Effective –Peerless Quality