In terms of bag sizes, normally customers like to ask for suggestions from us, but there is a difficulty on popcorn size, different popcorns have different weights. Some popcorn are very light, just their original type, while some will be added with much sugar, honey, or even chocolate powder, etc. The best way to confirm the size is that you can fill your popcorn into a sample bag, if you dont have sample bags, you can come to me and ask for some free samples.