The product is a set of 5 drum reset chips specifically designed for use with Xerox WorkCentre 5325/5330/5335 printers. These chips are compatible with the Xerox brand and are designed for laser print technology. The black color chips are manufactured in China and are meant for refilling purposes. Each unit contains a set of 5 chips to ensure a steady supply of high-quality printing supplies for the Xerox printers.