The product is a 4-pack of compatible toner cartridges 131X & 131A in black, cyan, yellow, and magenta colors. The cartridges are designed for use with Canon and HP printers, featuring laser print technology for high-quality printing. Specifically compatible with printer models such as laserjet pro 200 m251 and mfp m276 series, these cartridges have a height of 8.660 inches and are ideal for producing vibrant and consistent color prints.