compatible franking ink cartridge for pitney bowes DM500/DM525 DM550/DM575 DP500 DP550 621-1 1,compatible ink cartridge for pitney bowes DM500/DM525 DM550/DM575 DP500 DP550 621-1 2,fluorescent ink ,this kind of ink have arroved by USPS3,USA stock. we have warehourse in USA.we can ship cartridge to your door.4,15ml ink capacity.lancelot international is a professor in ink field.we can supply the ...