This is a large-size muffler, official merchandise from BIGBANG's live concerts. It's a good idea to get one in preparation for future concerts! It can also be used for everyday wear! We recommend that those who understand that this is a used item purchase it. ▷ Instant purchase OK ⭕️ ▷ Bundle requests OK ⭕️ ▷ To save on shipping costs, we will use recycled bags (paper) and ship in compact packaging.