These stoneware pieces are original designs by Mara. Each piece is engraved and painted by hand. All of Mara's design pieces are high temperature fired with lead free glazes. These beautiful pieces of functional art are microwaveable and dishwasher safe, plus hold 16 oz. Approximate dimensions: 5-inches x 3.75-Inches x 4.25-Inches. Please note: each mug is individually hand painted, so it may not look exactly like the one pictured.