If You Don't Get My Harry Potter References Then There Is Something Siriusly Ron With You Funny 11 or 15 oz Mug for Wizards by BeeGeeTees&reg; (11 oz) Made of white ceramic and contains no lead! Image printed on both sides with a high gloss finish. Available in 11 oz. and 15 oz. Dishwasher & Microwave Safe! High Quality Mug - Individually Boxed!! Printed and Tested in the USA.