This Polish Pottery bubble mug is handmade and handpainted by talented artisans from Ceramika Artystyczna Factory in Boleslawiec, Poland. All of our pottery is oven safe up to 450 degrees, microwave and dishwasher safe.  The high quality glaze makes it easy to clean. 
Unikat Signature Pattern U4830
Measurements: Height  3.8", Width  3.7", Capacity 11.oz