Handmade in high fire porcelain, matte blue glaze - 7” x 3.75” x 2.5”, Holds 8.5 oz. Made in the USA by Guten Co. Quality & Care: This piece is dishwasher safe and withstands daily use beautifully with just a few stipulations — it should not be placed over direct heat, heated to over 300 degrees, or shocked from one temperature to another.