The Hewlett Packard CB317EE is the standard capacity photo black cartridge available for a huge variety of printers including the Photosmart Premium C310. Designed with low frequency users in mind, this cartridge offers less than half as many pages as the high capacity HP 364XL photo black cartridge (CB322EE).Containing 3ml of Hewlett Packards own high quality HP 364 photo black Vivera ink, prints produced with this cartridge are resistant to fading, smudging and water. This means you not only get the very highest quality prints from an original CB317EE cartridge, but they are also highly durable.In addition to all these great features you also benefit from free UK delivery and a low (VAT inclusive) price when shopping with Refresh Cartridges.PLEASE NOTE: The estimated page yield of these cartridges is based upon a 5% coverage of 6\" x 4\" photos and not A4 paper.