Package Contents Includes: WINNER 1-Pack Blcak DR-223CL drum unit unit. Compatible for Canon Printer: MFC-L3770CDW MFC-L3710CW MFC-L3750CDW MFC-L3730CDW HL-3210CW HL-3230CDW HL-3270CDW HL-3230CDN HL-3290CDW DCP-L3510CDW DCP-L3550CDW; High Page Yield: -High capacity provides more pages to be printed. -Up to 18,500 pages per drum with 5% coverage (Letters /A4) Specialists in Print: -Clarity text and graphics. -Ensure that your daily printing meets exceptional quality. -We offer uniform powder,not easy to drop powder leakage. -Provides superior printing performance, realistic printing effect and has the advantage of anti-fading. Application: -Easy to use, improve the quality of work and life of the choice. -Widely used in schools, companies, hospitals, supermarkets, government and other fields. We would provide attentive customer service? If you have any questions,or the product you received is defective, please contact us as soon as possible,we are honored to help you.