What's in your package？1-Pk Black Compatible C331HK0 Toner Cartridge. What kinds of printer does toner cartridge compatible with？Lexmark C3326 C3326dw MC3326adweProduct advantage:-Superior print quality with producing professional color saturation vivid color reproduction and firm fixing.-Use environmentally friendly and harmless materials. -The fixing is firm and clear. Product quality assurance:-Strictly control the material selection requirements of carbon powder.-High temperature stability and excellent imaging quality in various environments. -A variety of printing test environment, can perform outstanding, rigorous repeated testing, to ensure the use of durable.Clear & Non-Fading Printouts:suitable for office work in schools, hospitals, government, trading companies, finance companies and more.After-sale service:If you have any questions about the product, please contact customer service instead of leaving feedback, refund or replacement; contact the seller through "order list"-search- "order ID"- Click "contact seller". ❣Thank you for your purchase and wish you a happy life.