This is a cooler bottle that makes daily care easy. It has a 7cm opening, so you can put your hand in and wash it. The bottom of the cover has a thick resin base, and it can be washed in a washing machine with a net. This item has been washed with an oxygen-based bleach and then stored. There are no noticeable scratches or stains on the main body, but there are marks from writing on the cover (see photo 5; I believe you can write new names on it). The lid can be used without any problems, but since it is a direct-drinking type, separate parts are sold for those who are concerned. As this is a used item stored in a private home, please refrain from purchasing if you are concerned about minor dirt. For discounts, shipping, and packaging, please check my profile. Capacity...1-2.9L