Thank you for viewing. This is a pair of rock cups from Nippon Craft, and I think they can be used for various purposes. Toetsu Kiln Gold and silver painting Crystal swirl carving Traditional crafts Diameter: Approximately 9.3cm Bottom diameter: Approximately 5.3cm Height: Approximately 11cm They are the same size. (They look different in size due to the way the photos were taken.) They are lovely, but I am listing them because I have no plans to use them.