2.75" x 2.75" x 1.75”. Food safe clay, copper-based interior glaze, unglazed patina exterior. Stovetop and oven safe. Hand wash only. Beautiful ceramic earthenware made by Ana Martinez from Santa María Atzompa, Oaxaca. The distinguished looks of Ana's works displays a matte finished exterior and a glazed interior. Can be used to serve tea, espresso, and sake. Due to the burn and magic that happens while the ceramics cook, each cup displays a unique earth tone.