This ring is made with an oval shaped piece of translucent white sea glass set in a fine and sterling silver bezel cup. The ring band is made with comfortable flat rounded sterling wire. This piece of glass is 7mm wide and 12mm long. Due to the fragility of sea glass, this ring cannot be resized and is only available in size 7. Over time, sterling silver rings will oxidize and appear to darken in color. To keep your ring clean and remove the oxidation, wipe gently with a silver polishing cloth. Do not use liquid jewelry cleaner - this risks damage to the glass.