Global Goodwill Jazz Series 1-Piece 23-Ounce, Mug, 4-3/4-Inch, Jazz White 20 ounce mug - JAZZ White Made out of 100% non-toxic melamine material Bold, sharp design of JAZZ collection provides versatility in any occasions It is dishwasher safe and National Sanitation Foundation (NSF) approved Not recommend for microwave or oven use, but able to withstand up to 212 degrees Fahrenheit