Compatible Replacements Included: 3 T126120 Black, 3 T126220 Cyan, 3 T126320 Magenta, 3 T126420 Yellow High Capacity Epson 126 Ink Cartridges Compatible Printers WorkForce 435, 520, 60, 630, 633, 635, 645, 840, 845, WF-7010, WF-7510, WF-7520, WF-3520, WF-3530, WF-3540 Stylus NX330, NX430 Prints the same number of pages as the original Epson 126 compatible ink cartridges Black Page Yield*: 740 Color Page Yield*: 480 Average cartridge Page Yield* in accordance with ISO-19752. *at 5% coverage (ISO/IEC standard) Consistent print performance / Tested for color accuracy / Comparable results to Epson 126 Please contact us first with any product issues. We want all of our customers to be happy because happiness matters.