The inner diameter is about 8.1 cm, and the height with the lid open is about 5.5 cm. It is "almost unused" as it is an unused item that has been stored for a long time. These are vibrant, colorful, and cute teacups. It seems they were originally a set of 6, and I was asked to list the remaining 2 that are unused. I hope someone can use them. Purchases from Mercari's official cross-border EC businesses are welcome. #Christmas #WinterSale