The owl mug is not dishwasher safe or microwave safe, usage age 14+, 24 oz. The cauldron is dishwasher safe and microwave safe, no age or capacity info. There is however small surface crazing, only on the owl and only in the text (word) areas - in other words only on the recessed bottom where the text is and, on the back, only around the Harry Potter words.
These Harry Potter mugs with 3D owl and cauldron designs from Warner Bros. would be ideal for any fan, especially those who frequent bookstores or coffee shops.
