The 2000 Plus Black Ink Refill by Cosco is a water-based ink refill bottle designed for use in printers. With a capacity of 0.9 oz (25cc), this product is perfect for those looking to refill their printer ink cartridges with high-quality black ink. Made in the United States, this unit is brand new and ready to be used for all your printing needs. Replace your old ink cartridges with this reliable and efficient ink refill from Cosco.