If you are buying a non-English Box Break, buy x1 of this item per box for which you want to keep your bulk. Otherwise, like with English Pokemon breaks, you will NOT get the bulk.
If you are buying multiple non-English Box breaks in a single purchase but aren't purchasing this for all of them, please include a note with purchase as to what box you DO want the bulk from and probably good to make sure the streamer is fully aware of the request during the live break opening.