1 set of 812xl cartridges with single use chip (disposable) or set of chips only. 

The 812xl Cartridges are compatible with the following model printers... Workforce-7820, Workforce-7840, c7000, Workforce Models-3820, 4830, 4834, and 4820 printers

Set includes:

1 Single Black Cartridge
1 Single Cyan Cartridge
1 Single Magenta Cartridge
1 Single Yellow Cartridges
4 syringes

*Set of chips only options does not include the cartridges, only the replacement chips. These chips will reset the ink levels and allow you to reuse your current aftermarket cartridges.

*Seller not responsible for delays after package has been mailed out.

*NOTE TO BUYERS....CARTIDGES WILL NOT WORK IN YOUR PRINTER IF YOU UPDATED THE PRINTER'S FIRMWARE. UPDATING THE FIRMWARE ON YOUR PRINTER WILL LOCK PRINTER CAPABILITIES AND NO LONGER ALLOW YOUR PRINTER TO USE AFTER MARKET CARTIRDGES <<<<< RESPECTFULLY, SELLER IS NOT REPSONIBLE FOR THIS ISSUE THAT IS CAUSED BY USER ERROR.