Karl Aiken Remanfactured For HP 950 printhead 950 951 950xl 951xl For HP Officejet Pro 8100 8600 8620 251DW 276DW For HP 8600 print head 1.Note: Usually need 5- 13 days to deliver. Needn't wait for a month 2.Suitable For Printer model:Pro 8100 8600 Plus 8610 8620 8625 8630 8700 Pro 251DW 251 276 276DW 3.Use in: hp officejet pro 8100 8600 8600 plus Printer 4.If there are any problems with our product,you can request returning or refunding within 7days after received the items.But please contact with our customers service first before returning or refunding,we will try our best to make you satisfied. 5.All cartridges are manufactured in an ISO 9001 certified facility