Features:Classic Design: Perfect 8mm wide black stainless steel ring suitable for Men and Women.Matte finish surface and high polish smooth innerface.Quality Material: Made of stainless steel which is not easy to be deformed or damaged lightweight and durable can be worn for a long time.Exquisite Details: The ring is exquisite in appearance smooth to the touch and friendly to your skin so you can wear it with confidence.Perfect Gift: You can also give them as gifts to your mother father families or friends on Mother's Day Father's Day graduation party etc. which will show your care and love.After-sales Service: If you have any questions after receiving the product please feel free to contact us and we will provide you with a satisfactory answer.Notice:Actual color may be slightly different from the image due to different display and light effect.Please allow 1-3cm deviation due to manual measurement.Specifications:Material: MetalWidth: 8mmWeight: 5gUSA RU FR CA BR DE Circumference(cm) Diameter(cm)6 16.5 51.9 6 16.5 16.5 5.19 1.657 17.3 54.4 7 17.3 17.3 5.44 1.738 18.1 57 8 18.1 18.1 5.7 1.819 18.9 59.5 9 18.9 18.9 5.95 1.8910 19.8 62.1 10 19.8 19.8 6.21 1.9811 20.6 64.6 11 20.6 20.6 6.46 2.0612 21.4 67.1 12 21.4 21.4 6.71 2.1413 22.2 69.6 13 22.2 22.2 6.96 2.22 includes: 3 * Rings"