?? It allows one to spin the glass holding liquid without the liquid splashing or spilling out. The cut glass surface of the glasses is elegant and attractive.Very classy and sophisticated glass; the wobbling glasses; the concept of the glasses with the spinning and balance. This glasses would release pressure, very interesting. They are sturdy, durable, the perfect size, easy to hold, and unique. Not only for drinking but also spinning. The rotating just adds to the fun while having a drink. When you feel boring and annoyed, it helps you a lot. The fact of a drinking glass sitting naturally at a tilt is unnerving in a sense, but it gives it a unique quality that is entirely refreshing and unique. They’re the perfect size for any drink and definitely fun to spin around. They are durable, the perfect size, easy to hold, and unique. Very cool to put a round piece of ice in that glass with a tasty beverage and spin it gently. Enjoy the weekend relaxing with these beautiful pieces of glassware. ??