6 "drunken" crystal whiskey glasses

I got them as a present, never used them, I have my own favorite whiskey glasses. Made in UK genuine crystal, rather heavy, I checked - 1.43 kg all four . And they sing. That is the old way to check the quality of crystal glass be it vine, cognac, whiskey, etc. Fill it with some water and move your finger over the edge and it must sing! I prefer Swish payments.