FP PostBase Ink Cartridge PIC10 for Postbase Mailing Machines OEM part # 58.0052.3038.00 Postageink.com products are exclusive and other companies do not sell our products. Make sure it is sold and shipped by Postageink.com or Fulfilled by Amazon from Postageink.com for True Postageink.com Quality! Postbase Compatible Standard Capacity Ink Cartridge Set for PostBase Mailing Systems 20, 30, 45, 65, & 85 only! NEW OEM part # 58.0052.3038.00 Provides up to 4,000 impressions, depending on applications, and usage. FP Ink Cartridge PIC10 NOT compatible with MyMail or PostBase Mini.