Rings sizing chart
| US Size | RU Size (Diameter, mm) | EU Size (Circumference, mm) |
| 4 | 14.96 | 47.00 |
| 4.5 | 15.34 | 48.20 |
| 5 | 15.76 | 49.50 |
| 5.5 | 16.20 | 50.90 |
| 6 | 16.62 | 52.20 |
| 6.5 | 17.06 | 53.60 |
| 7 | 17.48 | 54.90 |
| 7.5 | 17.89 | 56.20 |
| 8 | 18.27 | 57.40 |
| 8.5 | 18.65 | 58.60 |
| 9 | 19.10 | 60.00 |
| 9.5 | 19.48 | 61.20 |
| 10 | 19.89 | 62.50 |
| 10.5 | 20.31 | 63.80 |
| 11 | 20.69 | 65.00 |
| 11.5 | 21.14 | 66.40 |
| 12 | 21.58 | 67.80 |
