These beautiful hand thrown mugs are hand thrown with a wave pattern. Each one will be unique and slightly different then the others, think sisters no twins. -Microwave Safe - approx. 3.25 "x 3.75" - hold approx 12oz All wares are MADE TO ORDER. Images are representative of the item you with receive. All wares are made by hand in Austin, Texas. As such, variations inherent in the handmade process are to be expected. Slight differences in size, shape and color are not considered flaws, Please Visit Our GLAZE VIGNETTE , https://www.settleceramics.com/pages/glaze-vignette-new , for detailed descriptions of glazes surfaces.