New, unused Ayataka onigiri (rice ball) case. This is an insulated/refrigerated onigiri case. It will be shipped in an OPP bag via Yu-Yu Mercari delivery. It will be lightly compressed to fit in a postbox. (Polyester and aluminum, so it should be fine to compress it to some extent without affecting the quality.) - Design: Triangular design, green handle - Material: Polyester exterior, aluminum vapor deposition interior - Function: Insulated/refrigerated - Size: Suitable size for storing onigiri - Logo: Ayataka logo printed on it Lunch box, case, insulated, refrigerated ★ Instant purchase OK ★ Only those who understand that this is a home-stored item, please. ★ No smokers, children, or pets.