Teinen Kogyo Co., Ltd. Side Dish Container Calorie-L Hard Aluminum Plate Synthetic Rubber Packing Capacity: 290ml External Dimensions: 141.0 x 93.8 x 36.0 mm This item was purchased by a family member at Seibu Department Store and has been stored at home unopened for a long time. The packaging is damaged. I am also listing another unused item that I opened for this listing. I checked the condition of the rubber packing on that one, and while there is some slight age-related wear, the rubber still seems to retain its elasticity. Since this item was purchased at the same time, I believe it is in a similar condition. However, this is an item that has aged. I am asking for those who can accept that it is a long-term stored item. It will be shipped via Yu-Packet Post, a secure anonymous shipping service with tracking number via Yu-Yu Mercari便.