Lightweight Earthenware material,Weighs only 10 ounces,30% lighter than regular Ceramic,Interior is glossy with your choice of colour,The exterior of all mugs is a white glossy finish,Quality handcrafted and painted,Oversized ‘D’ shaped handle,Holds up to 450 ml. (15 oz.),FDA compliant,Dishwasher safe,Microwave safe,Dolomite