The size is 23.5cm. The condition is a very beautiful, like-new item with no noticeable scratches or stains, but please check the photos before purchasing. Although this item has only been tried on, please refrain from purchasing if you are very sensitive to such things. We check each item for stains and damage before listing, but there may be cases where we overlook something. The color may appear slightly different from the actual product due to differences in monitors and browsers. When shipping, we will fold the item as compactly as possible within a reasonable range due to its size. To prevent replacement-related issues, we do not accept returns, so please be aware of this beforehand. Thank you for viewing.