The antibacterial power of pure silver prevents the growth of bacteria. Because pure silver powder, specially processed, is kneaded into the resin, the antibacterial power lasts even after washing. Made in Japan for peace of mind. The container can be heated in the microwave with the lid removed. It can also be used as a lunch box or food storage container. Capacity: Approximately 1.5L Please understand that this item is stored at home before purchasing. Please see the following hashtag for other water bottles and lunch items on sale↓ #raWaterBottlesAndLunchItems Food storage container lunch box #FoodStorageContainer #LunchBox