The product is a lot of (3)genuine black ink cartridges by HP, model number 51604A. These ink cartridges are compatible with HP printers and offer a print technology suitable for inkjet printing. The cartridges are in their original packaging and have an expiration date of 2018, ensuring they are fresh and ready to provide high-quality printing results. Each cartridge contains black ink and is a genuine product from HP, making it a reliable choice for all your printing needs.