Shop at 247 compatible tn660 tn630 2 packs black laser toner cartridge Shop At 247 brand cartridge is sold exclusively by Shop At 247 Shop At 247 offers One-Year Warranty against defects Shop At 247 offers 180 Days Money Back Guarantee Page Yield Up to 1200 Pages at a 5% Coverage These replacement cartridges were professionally manufactured in an ISO 9002 factory