The product is a 4-pack of 131X 131A toner cartridges in black, cyan, yellow, and magenta colors, designed for HP printers. Made by True Image, these premium cartridges use laser print technology and are compatible with the HP CE255X model. Each unit is manufactured in China and includes a total of 4 cartridges in the pack. This product ensures high-quality printing performance with vibrant colors and sharp prints for professional printing needs.