Inkcool Remanufactured Ink Cartridge Replacement for HP 950XL ( Black,Cyan,Magenta,Yellow , 4-Pack ) 1.with pigment ink and show ink level chips 2.Shelf Life: 12-18 months 3.Fast Shipment 4.ISO9001 Certified Compatible for HP printer:HP officejet Pro8100, officejet Pro8600,officejet Pro8600 plus,officejet Pro8600 premium