Now you can recycle HP10 cartridges by simply replacing the chip. The cartridge can be refilled many times with this Auto-Resettable chip!This Package comes with 10 Chips for each color, a total of 40 chips.HP-10 Black - 10 ChipsHP-10 Magenta - 10 ChipsHP-10 Cyan - 10 ChipsHP-10 Yellow - 10 ChipsTo install it, remove the old chip with a blade. Place a small drop of super glue gel on the back of the chip and place it in the right position.