Purpose: Refill cartridges Used to refill depleted printer cartridges to extend their service life and reduce printing costs.

Easy to use: This refill cartridge is simple to use and easy to operate.

Clean up: After filling, clean up any ink stains that may have spilled from the outside of the cartridge and make sure the filling port is re-closed.

Precautions: Be careful during the filling process to prevent ink from staining clothing or skin, and do not overfill.