This is a box of genuine Xerox 8R12724 staple cartridges.  The box contains 3 cartridges, each consisting of 5,000 staples, for a total of 15,000 staples!  They are designed to fit the Xerox 1010, 1010DC, 1010ST, 2101ST, 4110EPS, 4110ST, DocuColor 12, DocuColor 50 and DocumentCentre 50.  This is a great OEM product at a great price!