This is a compatible set of 4 toner cartridges for the Dell C1660w printer, including black, cyan, magenta, and yellow. Each cartridge delivers a standard yield of up to 2,250 pages, ensuring that your printing needs are met efficiently. These cartridges are designed as an economical alternative to the original Dell brand, providing reliable performance without voiding your printer's warranty. Backed by our 100% Quality Satisfaction Guarantee, these compatible toner cartridges are equipped with a toner management system that enhances communication with your printer.