You are looking at 4 pack new toner cartridges for Brother laser printer. Replace your a new brother printer and they do not fit the current printer one of the cartridges was open to see if it fit as they look I like but never used TN730 is the standard-yield cartridge, while TN760 is the high-yield version. They fit the same compatible Brother printers.Please make sure they fit your printer before purchasing the item look at the photos closely make sure they fit.