Natural wood, keyaki (Japanese zelkova) carved-out confectionary container and teacup coaster set With lid There are 5 teacup coasters. Main body: Diameter approx. 16.5cm Height approx. 6cm (excluding lid) Lid: Diameter approx. 18.5cm Please allow for some error as this is amateur measurement. I believe it is natural keyaki wood, Yamanaka-nuri (lacquerware). The main body is heavy and has beautiful annual rings on the inner bottom. Unused and stored at home in a box for a long time. Please consider this before purchasing.