This is a new, unused plain ring made of 925 silver. The simple, unadorned design makes it perfect for layering with your existing jewelry. The material is 925 silver, so it will not peel or rust. It is not hollow inside; it is solidly constructed entirely of silver. Material: 925 Silver Width: Approx. 1mm Size: 11 (Japanese size) If you have any questions, please feel free to ask before purchasing. (◍•ᴗ•◍) Scratches, discoloration, etc... none.