The HP 201A LaserJet Toner Cartridges in Cyan, Magenta, Yellow, and Black are genuine original cartridges specifically designed for HP printers. These cartridges are compatible with various HP LaserJet Pro and M252, M277 models, providing high-quality prints with vibrant colors. The toner cartridges utilize a laser print technology, ensuring crisp and clear documents and images every time you print. This set of 4 cartridges is perfect for anyone looking for reliable and top-notch printing supplies for their HP printer.