see the glasses to be nice, even if they have several small processing error (upper edge termination is in none of the glasses smooth, always a little bump with offset). In the glass there are several small bubbles. according to the product description, the glasses freezer and dishwasher are suitable for microwave, fridge,.. Of the 4 glasses, which I have received is an unfortunately shattered during normal dishwasher operation in several parts, possibly a result of poor workmanship / manufacturing defects? the other three have so far survived.