The Green Project 61XL Black Tri-Color Ink Cartridge Set (CR258BN CH563WN CH564WN) is a compatible ink cartridge set designed for Hewlett Packard and HP printers. This ink cartridge set includes black and tri-color (cyan, magenta, yellow) colors, making it suitable for various printing needs. The cartridges are sealed in a retail box and are compatible with HP 61XL and HP 61 printer models. With this product, users can enjoy high-quality prints and vibrant colors for their documents and images.