Features: 1. Ring size (USA): 7/9/11 (This model is an adjustable ring with two sizes floating up and down) 2. Suitable for occasions: wedding/party/engagement/gift/anniversary/proposal/leisure/couple 3. Made from copper, anti-rust, anti-oxidation, not easy fade. 4. Cool, punk, hip-hop rock style angle wing adjustable ring. 5. Unisex design, for men, women, couple, etc. Notice: 1. Actual color may be slightly different from the image due to different monitor and light effect. Please allow slight deviation due to manual measurement. Specification: Product material: pure copper Product size: 7 ,9 ,11 (USA size, adjustable size of opening, please adjust gently) USA UK RU FR CA BR DE Circumference Diameter 7:N1/2(O) 17.3 54.4 7 17.3 17.3 54.4mm 17.3mm 9:R1/2(S) 18.9 59.5 9 18.9 18.9 59.5mm 18.9mm 11:V1/2 20.6 64.6 11 20.6 20.6 64.6mm 20.6mm includes: 1 x ring