LD Compatible Toner Cartridge Replacement for Brother TN720 (Black, 4-Pack) Page Yield: 3,000 per cartridge | Shelf Life: 24-36 Months per cartridge The use of compatible replacement laser toner cartridges and supplies does not void your printers warranty All LD branded products are backed by a 100% satisfaction and LIFETIME guarantee We offer lightning fast shipping on all printing supply and inkjet photo paper orders For use in the the following Brother DCP, HL, & MFC printers: 8150DN, 5450DN, 8950DW, 8710DW, 5470DWT, 8110DN, 6180DWT, 8155DN, 5440D, 8910DW, 5470DW, 8510DN, 8950DWT, 6180DW, 8810DW