size info EU 51 (ISO / International standard) - US 6 - JP 11 (Diameter = 16.3 mm) Thank you very much for seeing it. This is parallel sale with other stores. We always check inventory, but please understand that it may be sold out by time difference. We pay close attention to the production, but for each one point handmade, detailed details may differ from the photos. Please understand that point in advance. Material: silver 950 / Dalmatian stone Size: No. 11 (not resizable) Non-returnable Plating processing is not applied to enjoy the original texture of the metal. If you want to avoid discoloration, it is effective if you gently wipe with a soft cloth after using it, store it in a bag with chuck, etc. and care for it occasionally with a special cross or polish powder. Please note that polish powder does not adhere to the stone in that case. Although we are producing with consideration of strength, please be careful as we are making delicate. Since we are using natural stone it may have scratches or chips derived from nature. I hope you will enjoy it as the natural beauty of nature. When dropping or hitting it will cause scratches or chipping on the stone, so please be careful when using and storing. There is a risk of getting caught on clothes on design. Please be careful when used with delicate clothing. If you have any other requests, please feel free to contact us if you have any questions. <Prohibited matter> We reserve the right to refuse purchase for imitation by resale or sale purpose.