This is a set of inks for the HP K8600 Officejet Pro inkjet printer.  These ink cartridges are part used and were removed from the printer which failed after years of use.  We do not know how much ink remains in these cartridges except for the yellow tank which is brand new.  We do know that there were no warnings about ink running low.
As you can see in the photo all but the black ink cartridge are the XL type.
Please be sure that these cartridges are compatible with your printer before you bid.