Contains a trial “Mini Box” and a larger “OyatsuBox” (not affiliated with the other OyatsuBox). All boxes ship worldwide, and the mini box is a one time box that does not renew.
You can get 15-20 kinds of Japanese popular snacks every month. They have a description of raw materials. Some snacks are chosen by your vote. The items in the assortment change every month.
The site is a little … odd, but the service is legit.