Please check the expiration date in the photos! I will ship via Yu-Packet Post, either in a box of the specified size or directly in a waterproof and durable宅配 (delivery) packaging bag. For combined purchases, the packaging size will change, so I can only accommodate orders of 5 sets or more. Thank you for your understanding! Please refrain from price negotiations! I am also selling on other sites, so items may be removed suddenly. Thank you for your understanding. #CatTreats #LowerUrinaryTract #LacticAcidBacteria #GrainFree #Churu