Cartridge Mate for Filling Canon PGI-40 Black Cartridges._x000D_ _x000D_ Save money, lots of it by making your PGI-40 Black cartridge a refillable cartridge that you can re-fill 5 to 10 times, depending on the wear and tear of the print head. Simple to use and very cost effective._x000D_ _x000D_ The cartridge mate system is complete tool that allows you to place your cartridge in a cartridge jig, locate the fill hole and enlarge the hole with the drill tool supplied. After the hole enlargement is done, place the lid on the jig, and then use one of the ink re-fills to locate in the jig lid and press.Thats it, the cartridge will auto fill in approximately a minute._x000D_ _x000D_ Remove the cartridge from the jig and put back into your printer to enjoy low cost printing from now on._x000D_ _x000D_ Replacement ink refills are available from this store at a fraction of the price it costs to buy a new cartridge!