For sale is a brand new, factory-sealed HP 21 Black Ink Cartridge Twin-Pack (Model: C9508FN). This is a genuine, original Hewlett-Packard OEM product, not a third-party clone or refilled cartridge.Item Condition:Status: New and factory sealed.Packaging: The exterior cardboard retail box is completely sealed and intact, showing only normal minor shelf wear as pictured.Expiration Date: Stamped February 2013.Product Details:Brand: HP (Hewlett-Packard)Cartridge Number: 21 Black (Twin Pack - Contains 2 Cartridges)Ink Type: Pigment-based black inkPage Yield: Standard yield (approx. 190 pages per cartridge). Stock#CVV02