BABYMETAL has revealed their limited edition vinyl artworks, which were announced back in April. They have artworks from the previous limited edition album artworks (but now in vinyl form).
It has shipped 100,000 copies in Japan since release.
It appears to have been a very off-hand experience. He explained the process in a talk with Herman Li of Dragonforce.
Yesterday the set started shipping out to the people who pre-ordered it and even though the release date is tomorrow (Wednesday 9th), many have already received it, some are going to get it today outside of Japan as well.