I think the whitish item is pottery, but I don't know what kind. The size is about 10cm in diameter and 6cm in height. The larger one is ceramic, and I'm not sure if it's pottery. It has granules on the outside, and the surface is not flat but slightly wavy. It's quite heavy. The size is about 12cm in diameter and about 7cm in height. I think it would be lovely not only as a tea ceremony bowl but also as a flower vase. Thank you for looking.