Like rechargeable battery, these refillable ink cartridges save you huge amount of money in the long run. Once the ink runs out, just unplug the filling hole and inject corresponding ink into the cartridge using the supplied syringe. The whole process takes about 1 minute and is foolproof. These special cartridges are designed to be refilled hundreds of times and will last longer than your printer! With clear plastic window showing the level of the ink and spongeless design, you don't need to worry about spills and bubbles. No mess No pain No stain! Each refill cost only pennies and you will save the environment by reducing the plastic waste. High quality bulk ink available to order under the INKs category. If you can't find your cartridge model or printer model here, sorry we don't have the refillable cartridges yet.