I can't rate the item because I never received it.

These are gorgeous glasses and will be treasured for a long time. The marble in particular is dazzling, especially when looking through the top and moving the glass under the light. That said, though in recognition & expectation that each hand-blown glass would be unique, the pair of glasses I received are strikingly different, looking slightly awkward when together, and showing different flavour profiles. One is smaller and the bowl is more angular (like in the photograph), while the other is noticeably taller and with a wider bowl. The volume of the larger one is 190ml and the smaller is 170ml. The wider bowl more quickly loses its effervescence but retains body, while the narrower one is sharper but retains acidity and effervescence. Note also if ordering from Canada that US Customs charged $100.