Review on Wine Glasses, Set of 4 - Large Red Wine or White Wine Glass for Women, Men, Wedding, Anniversary, Christmas, Birthday - 17oz, 100% Lead Free Crystal: A Unique Gift by Bill Tripi

These are beautiful glasses but fragile! The rainbow is amazing. They don't feel very heavy and the crystal glass feels thin, so I advise you to hand wash them very gently and dry immediately. The iridescence is the coating most likely to be damaged by high temperatures in the dishwasher. My dishwasher has a crystal setting but I didn't want to try it simply because I almost never have my full load of crystal and wouldn't waste an entire cycle on just a few glasses. I plan on buying more just because they are so beautiful.