These are genuine products as shown in the photos. They are Canon BCI-371XL+370XL/6MP equivalent, high-capacity type. As shown in the photos, the recommended use-by date is unknown. Please purchase only if you understand and accept this. Also, the color of the shrink wrap on the back may be gray or transparent. Please check the compatible models on the CANON website, etc. Use is at your own risk. Also, we do not sell individual items or offer discounts. (Regarding the acceptance of ink with an unknown recommended use-by date) *Please proceed with your purchase after understanding and accepting the following. A buyer who purchased ink with an unknown recommended use-by date, despite it being clearly stated in the description, left a "disappointing" rating, stating, "I assumed it would be good for 1-2 years past the expiration date." Since the recommended use-by date is stated as unknown, it really is unknown. We check all items before shipping to ensure they are not solidified and confirm they are liquid. In the past, the only instance of a customer reporting that ink with an unknown recommended use-by date was unusable was when we sold Epson 50 ink. Even then, we confirmed the product was fine before shipping. After consulting with the buyer, we concluded that the issue was either the buyer's false claim or a printer malfunction, and we reached a resolution by splitting the cost. 〈Conclusion〉 First, please read the description and profile carefully and understand them. If you don't understand, ask questions until you do, or choose not to buy. Also, if you have any concerns, you should refrain from purchasing from individuals. Some people later cause trouble, request cancellations, or ask for refunds, but it ends with, "You understood and agreed to the description when you purchased, right?" Regarding the "disappointing" rating in this case, the Mercari administration dismissed the buyer's claim. As a result, a negative rating remained, but I consider this a mere accident.