Polish Pottery Mug - Straight Sided - Christmas Trees 3 1/2"H (8 oz. measured to the rim) Handmade and hand-painted in Poland by Ceramika Artystyczna Use for coffee, tea, hot chocolate, cider and more! This mug is a perfect gift for any occasion. All of our Polish Pottery is safe for use in the microwave, dishwasher, and oven.