japanese style insulation lunch box office worker portable with rice lunch box soup bowl with lid simple soup box microwave bento box

blue-large blue-small size blue-two pack (with thermal bag) blue-three pack (with thermal bag) blue-four pack (with thermal bag) m-large m-small size m-two pack (with thermal bag) m-three pack (with thermal bag) mi-four pack (with thermal bag) brown-large brown-small size brown-two pack (with thermal bag) brown-three pack (with thermal bag) brown-four pack (with thermal bag) small size thermal bag (applicable to two packs) medium thermal bag (applicable to three packs) large insulation bag (applicable to four packs)

microwave oven foam insulation