These mugs are nice, large enough to be used for chili, stews and soups.  They are microwave, dishwasher, freezer and oven safe which is really nice.  No info on maximum oven heat, but assuming max of 350 degrees.  If you are planning on giving as a gift you might want to repackage.  The packaging definitely looks like they just arrived off the boat from China. All I can say is you get what you pay for.  After I ordered these mugs I ordered the Crock Pot Mathiston 27oz bowls which actually arrived first, more expensive set but well worth the price.