The product is a set of 4 toner chips designed for Xerox Versant 80, 180, and 280 press printers. Made by Xerox, these laser print technology chips are compatible with the specified Xerox models. Manufactured in China, this unit quantity of toner chips is essential for refilling the printers to ensure high-quality prints. Ideal for those needing to replenish their Xerox printer's toner supply, these chips guarantee reliable performance and consistent results.