Those are the brand cartridges and adaptable so no problems that ruin your printer. Anyway mine, I try more adaptable and nothing happens every time I have to be cleaned very often heads and so overall I use the cartridge to clean the heads of the printer and not for print. And with the brand cartridges and ban it does not happen to me. In addition they are a bit cheaper than in business or on specialized sites. They are not in one package but in an individual package for each cartridge as if you bought them individually in trade.