Review on Handmade Black Marble Wine Glasses: Perfect For Intimate Gatherings And Elegant Home Decor by Olajuwon Achille

I like everything about these. I knocked off a star for "Sturdiness" because I have not seen one hit the floor yet. I suspect it would not survive that, but I don't know that for sure. The question about "Durability" -- uhh, that's an odd thing to ask someone who just got them. Ask me again in 10 years.Literature says they are marble. I ain't so sure about that. I suspect possibly "cultured" marble. Independent of my suspicions, I really like them. I bought a pair as a gift for another, then turned around and ordered another pair for me. yay!