Thank you for viewing. ■ iwaki ■ Unused Microwave-safe with the lid on! This is a convenient airtight storage container that's easy to use, simply by raising and lowering the valve. It's a convenient storage container that can be sealed simply by lowering the lid's valve to shut out air. Raising the valve allows air to enter, making it easy to open the lid. Made of heat-resistant glass, it's resistant to salt and acid, and doesn't easily stain or retain odors, so you can use it for various foods. It offers a high degree of airtightness, and the ability to microwave food with the lid on, without needing plastic wrap, is also a great feature. It can be stored in the refrigerator or freezer, and is perfect for storing foods that can stain or have strong odors, such as curry, dried goods that don't like moisture like coffee beans, and pre-made side dishes. It also looks great when placed directly on the table. Being transparent, it's easy to see the contents and storage condition even when stacked. In addition, the lid and packing are integrated, which not only provides high airtightness but also makes it easy to clean. It can be sterilized with boiling water, making it hygienic and easy to use. Small: Capacity 550ml (body, lid) x 3, Large: Capacity 1 liter (body, lid) x 3 Thank you.