Thermal transfer refills are designed for use in Brother IntelliFax-1170, IntelliFax-1270, IntelliFax-1270e, IntelliFax-1570MC, IntelliFax-1575MC, MFC-1770, MFC-1780, MFC-1870MC, MFC-1970MC. Cartridge yields approximately 450 pages. This package includes two black print refill rolls. Brother print cartridge refill rolls produce superior quality for a wide array of printing needs. Because quality always counts, you can always count on Brother. For superior results every time you print, choose Brother Genuine Ink & Toner.