4H (15 oz measured near the rim) Handmade and hand-painted in Poland. Use for coffee tea hot chocolate cider and more! This mug is a perfect gift for any occasion- birthdays anniversaries secret santas get well soons weddings etc.! All of our Polish Pottery is safe for use in the microwave dishwasher and oven. Unikat Signature - signed by the artist - Teresa Liana 073- Mugs Tea & Coffee U3271 U3271 UNIKAT coffee mug coffee cup polish pottery mug pottery mug bubble mug polish pottery CA pottery ceramika artystyczna polish stoneware ceramic artistic