The design of this ring is based on slices of onion, and finished with a circular texture. The top feature of the ring measures approximately 23mm x 23mm. Although the design allows the ring to be adjusted in size, please specify your preferred ring size in the drop-down menu. Material: Britannia Silver 958 (can take 1-2 weeks for production if out of stock) This piece is crafted in Britannia Silver 958, a high purity silver which retains its bright color (unlike sterling silver which tarnishes easily). We provide a small zip lock bag in which we recommend to store your piece/s to keep them away from the air. This will help to keep them bright for a long time.