The product is a 2-pack of genuine HP 951 ink cartridges in magenta color. These original cartridges are designed specifically for HP printers and are compatible with the HP Officejet Pro 8600 model. Made in China, these cartridges use inkjet and dot matrix print technology to ensure high-quality printing results. With a focus on cyan, yellow, and magenta colors, this product is ideal for users looking to replenish their printer ink supply with genuine HP cartridges that deliver reliable and consistent performance.Requires Registry in HP Instant Ink Program to use Ink Cartridge.