This is a 160-pack refill set for sinus rinse. Purchased in January 2025. I'm selling it because I don't think I'll be able to use it all. As this is a foreign product, there is a possibility that some packets may have a slight powder leakage. I have purchased this many times, and I have often found the bottom of the box or bag to be rough. I don't think there's any particular problem, so please purchase with your understanding. Please read my profile. #NoseRinse #Allergy #HayFever #ColdPrevention #Virus #Rhinitis #Sinusitis #Corona #Influenza