Polypropylene sandwich case, heat-resistant up to 140°C, perfect for picnics. - Product Name: Lovely Case - Design: Fruit and sandwich illustrations - Material: Polypropylene - Heat Resistance: 140°C - Cold Resistance: -30°C - Usage: Ideal for picnics and hiking Unused and the contents are clean (^^) Since it's an old item, there may be unseen deterioration, so we cannot guarantee its practical use. We appreciate your understanding if you enjoy it as a retro item. We also have other Showa-retro items for sale. Please take a look if you'd like. We offer discounts for combined purchases ☺︎ Thank you for viewing.