Feature:Compatible Cartridge's Status:Full Bulk Packaging:Yes Colored:No Item:CRG137 337 737 compatible toner cartridge Page Yield:BK, 2400pages Price:Factory Price Defective Rate:< 1% Replacement:1:1 Defective Product Warranty:24 Months Quality:one by one tested Certificate:CE STMC ISO9001 ISO14000 SGS