The product is a lot of 3 genuine HP 727 photo black ink cartridges, each containing 300ml of ink. These original cartridges are designed for use with HP printers, specifically the HP DesignJet 727 model. The ink is photo black in color, suitable for high-quality printing applications. Manufactured in Singapore, these cartridges are reliable and ensure consistent, professional results for your printing needs. Each cartridge comes in its retail box packaging, making it easy to store and transport.