【★ Material】 Hand-made, international standard 925 sterling silver (hand-made without electroplating) 【★ Size】 Approximately 0.6cm in width (Please confirm the correct size of the ring. If the size is found to be unsuitable after the production is completed, modify it. You need to charge extra cost for modifying the ring. ) Here is how to do it yourself: https://farm5.staticflickr.com/4563/38353099266_af048c072c_b.jpg 【★Glossy jewelry】 Trouble remarks "Liuhua Retro Dyeing Black" or "Bright Face" https://farm5.staticflickr.com/4438/36918921330_68c49b3f75.jpg 【★ Commodity packaging】 Fashionable texture flannel small paper box, exquisite black small carrying paper bag, zipper storage bag, high-grade nano silver cloth, business card guarantee card (including material maintenance instructions). 【★ Maintenance method】 1. Wear it frequently, body oil can provide protection, so that the jewelry is not easy to turn black. 2. If you do not wear it for a long time, you can wipe it with a silver cloth and put it in a sealed bag. 3. Do not soak in hot springs, sea water and chemicals to avoid vulcanization and blackening. 4. For daily cleaning, you can use a toothbrush and toothpaste to gently brush, then rinse with water and blow dry. 【★ Warranty】 If you have any problems with the ring, you can send it back within seven days. We will replace it with a new product immediately. You can also clean and maintain it for free, but postage must be collected. Warranty will not be provided after one month.