Detailed Product Description: colortoner cartridge Use forLexmark C510 printer 20K1400 Cyan 6000pages 20K1401 Magenta 6000pages 20K1402 Yellow 6000pages 20K1403 Black 10000pages colortoner cartridge Use forLexmark C510printer 20K1400 C 6000pages 20K1401 M 6000pages 20K1402 Y 6000pages 20K1403 B 10000pages Guarantee: 1)We supply Top quality products with reasonable prices Our company only use the best materials from Top-Tier raw materials suppliers ,such as Rollers and Toner are all imported from Japan, only to ensure the best and stable printing result. 2)Meets or exceeds OEM products and all of our products are 100% pre-tested prior to leaving the factory 3) We guarantee for 100% replacement or refund for any defective products thatcaused by our manufacture. Advantages: 1)Our company has been engaged inprinting consumables business for many years. 2)We have the strong advantage of quality and cost control, new products research and development, molding design capability, what's more, We have been audited national printer consumables industry standard, Quality is 100% guaranteed,and our service is the best. 3)We follow ISO 9001 standard very strictly. We also supply HP , SAMSUNG , CACON, EPSON, KONICA MINOLTA, BROTHER, DELL, LEXMARK, XEROX COLOR AND BLACK TONER CARTRIDGE