The Automatic 3 Refill System for HP 15 40 45 Data Products 60407 DeskJet OfficeJet is a convenient and efficient ink refill solution for your HP printer. This system includes three 40ml black ink refill bottles specifically designed for the HP 45 ink model. Made by Data Products, a trusted brand in printer supplies, this product is compatible with various HP printer models such as 15, 40, and 45. With this refill system, you can easily maintain the quality of your prints and keep your printer ink levels topped up for a hassle-free printing experience.