Empty Refillable Cartridge for HP 88 ink L7580 L7680 L7780 includes a free nano stapler Many users find it more convenient to have extra set of cartridges to precipitate a quick change over when a cartridge is reported empty Newest ARC (Auto Reset Chips) Chips installed. Easy to rest, reset in seconds, QUICK and EASY Large, spongeless cartridges, easy to refill, save 90% over original Inkjet Cartridges Clear cartridges, easy to check the level of the ink, no overflow when you are refilling the cartridge Includes a free nano stapler for school or office (May ship in a variety of colors. Staples up to 30 sheets of 22 lb. paper )