so many things can't be returned, and people who have lost them will be very anxious. So many packing boxes must be used by merchants for packing. Mei knows that it's a packing box, a disposable lunch box, a transparent box, so go find someone who needs them. You can buy it wherever you need it. Fast food makers and take-out makers definitely need it. It is also necessary for restaurants to send take-out food. This is very simple.