impeccable and cheaper compared to buying al the unit ... beware of website printer compatibilities because this was supposed to be incompatible with the Samsung 3170 series printers and c is a mistake. I have almost bought this product also because of this casting error. It's very nice to have toners in stock because usually when a color is running low, the others soon followed. Unlike ink cartridges, these products keep well in time in their original packaging ultra upholstered. For years I use these toners, that is my second purchase and walking printer nickel for several years. Laser cartridges thank you and farewell jets inks.
