[Commodity description]: ring. 【Size】: Ring width: 0.4 cm. Ring Wai: International Wai # 8 ~ # 12 can be customized. [Material]: 925 silver. [Surrounding measurement method] 1. The finger circumferences of the left and right hands are mostly different, please make sure that you are wearing the left or right hand first. 2. Use a thin thread (such as a sewing thread) to wrap around the part where you want to wear the ring, and then measure the length. This is the circumference of the ring (in cm). Please calculate the length of the international circumference. 3. Or check "Guwei" on the Internet to know how to find your own siege. 4. The easiest way is to find a silver building closest to your residence and ask them to measure the ring size for you. 5. Be sure to confirm the correct size of the ring. If the size is found to be unsuitable for modification after the production is completed, you will need to charge an additional cost for modifying the ring. 【Use and maintenance methods】 1. Frequently worn, body oil can provide protection and make jewelry difficult to turn black. 2. Avoid direct contact of silver jewelry with perfume, cosmetics, detergents and seawater. 3. Avoid contacting hot springs with silver jewelry to avoid oxidation and blackening due to sulfidation reaction. 4. After wearing, wipe gently with a silver cloth, please keep it dry and store it in a chain bag. [Origin / Manufacturing Method]: Handmade in Taiwan.