Package Contents: 2 Pack CF410X Black Toner Cartridge. 1 Pack CF411X Cyan Toner Cartridge. 1 Pack CF413X Magenta Toner Cartridge. 1 Pack CF412X Yellow Toner Cartridge. Compatible Printer Models: Color Pro M452nw Printer Color Pro M452dn Printer Color Pro M452dw Printer Color Pro MFP M477fnw Printer Color Pro MFP M477fdw Printer Color Pro MFP M477fdn Printer Simple installation method: Step-1:Shake for 5 seconds to loosen toner powder distribution Step-2:Remove the seal tape from side of the toner Step-3:Remove orange rings from side of the toner Step-4:Insert the toner cartridge into your printer 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 410X 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”.