Royal Worcester Wrendale Designs Fine Bone China Single Mug, Wild at Heart Royal Worcester Wrendale Designs Wild at Heart Fine Bone China Mug This product is designed in our studios in Stoke on Trent, England and manufactured outside of the UK to the stringent quality and craftsmanship that Portmeirion Group is known for Material: Fine Bone China Dimensions: 0.31 Length and 11 fl. oz. Dishwasher and Microwave Safe