Easily sealed by pressing the valve on the lid! The main body is made of heat-resistant glass, so you can see the contents and the storage condition at a glance. You can use it in the microwave with the lid on. Stackable storage in the refrigerator! Space-saving! [Contents] 110ml (outer dimensions 90 x 90 x 55mm) x 1 260ml (outer dimensions 130 x 130 x 55mm) x 1 450ml (outer dimensions 155 x 155 x 55mm) x 1 700ml (outer dimensions 155 x 155 x 80mm) x 2 [Components] Body: Heat-resistant glass Lid: Polybutylene terephthalate (heat resistance: 140°C) Silicone rubber (heat resistance: 200°C) Retail price: 10,780 yen I have stored it without using it much. There is no outer box. Only the actual product shown in the photos. There are no noticeable scratches or stains, but please understand that this is a used item that has been in someone's possession before and only purchase if you agree.