Surface Width: 8mm
Material: Metal
| Ring Size | Circumference(mm) | UK,Europe & Australia | CN/SG/JP | HK | Switzerland |
| 4 | 46.8 | NA | NA | 8.25 | NA |
| 5 | 49.3 | J 1/2 | 9 | 10.75 | 9 |
| 6 | 51.8 | L 1/2 | 12 | 13 | 11.5 |
| 7 | 54.3 | O | 14 | 15.25 | 14 |
| 8 | 56.8 | Q | 16 | 17.75 | 16.5 |
| 9 | 59.3 | S | 18 | 20 | 19 |
| 10 | 62.2 | T 1/2 | 20 | 22.25 | 21.5 |
| 11 | 64.7 | V 1/2 | 23 | 24.75 | 24 |
| 12 | 67.2 | Y | 25 | 27 | 27.5 |
| 13 | 69.7 | NA | 30 | 29.25 | NA |
| 14 | 72.2 | NA | 32 | 31.75 | NA |
| 15 | 74.7 | NA | 35 | 34 | NA |
*These charts are for reference only. Fit may vary depending on the construction, materials and manufacturer.
