Specifications: This finger ring has a rotatable chain on it, unique and stylish. You can use it as bottle opener to open beer, etc. It is easy to use and carry. A nice tool is suitable for home or bar use. Item Name: Bottle Opener Ring Material: Stainless Steel Features: Anti-Rust, Convenient to Use, Finger Ring Opener US Size 6(Dia): 16.4mm/0.65" (Approx.) US Size 7(Dia): 17.3mm/0.68" (Approx.) US Size 8(Dia): 18.1mm/0.71" (Approx.) US Size 9(Dia): 18.9mm/0.74" (Approx.) US Size 10(Dia): 19.7mm/0.78" (Approx.) US Size 11(Dia): 20.6mm/0.81" (Approx.) US Size 12(Dia): 21.4mm/0.84" (Approx.) US Size 13(Dia): 22.2mm/0.87" (Approx.) Notes: Due to the light and screen setting difference, the item&39;s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Bottle Opener Ring