This product is a set of four toner chips designed for Xerox WC 7830, 7835, 7845, 7855, 7970, and 7970i printers. These multi-color toner chips are compatible with these specific Xerox models and are manufactured in China. Laser print technology ensures high-quality printing results, making them a reliable choice for refilling your printer with fresh toner. Perfect for those looking to maintain their Xerox printer's performance and get professional-quality prints.