Package Contents: 1 Pack TN-227BK Black Toner Cartridge. 1 Pack TN-227C Cyan Toner Cartridge. 1 Pack TN-227M Magenta Toner Cartridge. 1 Pack TN-227Y Yellow Toner Cartridge. Compatible Printer Models: MFC-L3770CDW MFC-L3710CW MFC-L3750CDW MFC-L3730CDW HL-3210CW HL-3230CDW HL-3270CDW HL-3230CDN HL-3290CDW DCP-L3510CDW DCP-L3550CDW The latest upgraded chip: Adapt to the latest upgraded chips that can be quickly identified, ensure higher compatibility and provide a lasting printing experience with excellent performance! Printing Performance: Our TN-227 toner cartridges are made of high-quality carbon powder nano-level manufacturing process, with firm fixing, high blackness, non-toxic and harmless, bringing users a good experience. Aftersales and Warranty: If any of our items are defective, guaranteed money back; reach us via: 1. “Order List” -> Click “Contact Seller”. 2. Click the store name link under “Add to Cart”-> Click “Ask a question”.