I had doubts when I first bought this set of inks since they are not original.. However, I have to admit this is an excellent bang for the buck. You would easily pay 5X as much for the "NAME" somewhere else and probably for fewer cartriges. I would highly recomend these to anyone in need of the LC51 cartriges for a Brother printer. Overstock delivery was as usual as promised.... Get'em if your in the market. You will not be disappointed.