The Packaging Include: 1 x DR-223CL Black Drum Unit. Compatible with Printers: MFC-L3770CDW MFC-L3710CW MFC-L3750CDW MFC-L3730CDW HL-3210CW HL-3230CDW HL-3270CDW HL-3230CDN HL-3290CDW DCP-L3510CDW DCP-L3550CDW What quality of products can we provide to you? Consistent lines | Clear text | Vivid pictures. It was precisely designed to deliver clear and crisp printing result to satisfy your needs. Where is this product applicable? The office,home,school,hospital and factories,but need to avoid using and storing in high temperature,humidity and cold conditions. What can you do with a product issue after 30 days from purchase? From the moment you purchase products, you can enjoy our lifetime service. You can contact us at any time via the 'Contact Seller' on your order,and we will give you a satisfactory solution.