This 11oz 100% Natural Ceramic mug is printed in the UK with water based inks and renewable energy. Teemill's sustainable mugs are made from superior quality heavy-weight natural ceramic with a super hard dishwasher-safe coating. Bright white with a high gloss finish. Designed from original artwork of beautiful butterflies to enhance any nature lovers coffee break! Dishwasher and microwave-safe with a durable, high gloss finish.