⭐︎ This is a ring that spins. I only tried it on after purchasing it, but the size didn't fit, so I'm selling it. The size is an amateur measurement with an inner diameter of 20mm and the material is titanium. ⭐︎ It is stored at home, so please only purchase if you understand this. ⭐︎ I will also consider price negotiations within reason. ⭐︎ After purchase, please no claims, no returns. If you have any other questions, please feel free to contact me.