Green Toner Supply (TM) Compatible TN660 TN630 1 Pack Toner Cartridge LIFETIME Limited WARRANTY with GTS Brand, Customer SATISFACTIONS GUARANTEE Page Yield: 2,600 pages per toner cartridge All toner cartridges are manufactured in an ISO 9001 certified facility All toner cartridges are engineered to produce superb results All products covered by a 100% satisfaction Money Back guarantee