HP® 305A Cyan/Magenta/Yellow Original Laserjet Toner Cartridge Yields Up To 2,600 Pages Per Cartridge. They Can Be Used Individually Or Together To Replace Your Existing Cartridges As They Run Out Of Toner. Each Cartridge Is Made With HP's Time-tested Printing Technology, So You Can Rest Easy Knowing That You Are Purchasing A Safe Product For Your Printer.