GREENSKY 1Set+1Black( 2B1C1Y1M ) Color Set Compatible Replacement Dell C1660 laser Toner Cartridge for Dell C1660w C1660 C1660cnw Color Printer GREENSKY Toner Cartridge Replacement for Dell C1660 contains:2 Black, 1 Cyan, 1 Yellow, 1 Magenta Suitable for use in Dell C1660 C1660W C1660cnw ISO 9001 & 14001 (INTERNATIONAL STANDARD ORGANIZATION Quality Standard) Standard Yield: Black: 1250 pages, Color: up to 1000 pages based on 5% coverage of Letter/A4 12-MONTH 100% Quality Guarantee ensures that you will get quality printouts with our compatible or remanufactured cartridges. Any problems under normal circumstance, demand for a return is acceptable