Lunch box container. This item has been stored for a long time, but it is unused and unopened. It is stated that it can keep an aluminum lunch box warm while inside. Please note that there may be some age-related wear and tear from storage, along with damage to the packaging. Please review the images and purchase only if you understand the above. ★ Light packaging will be used, omitting air padding (clothing items are generally without air padding). ☆ Please note that, at times, the shipping method may be changed from Yu-Yu Mail to Raku-Raku Mail. Also, to minimize the size, items may be compressed for packaging. ★ Please refrain from price negotiations. ☆ Please read the profile before purchasing.