Size Guide
NEED ASSISTANCE?
CONTACT US| US SIZE | INTERNAL DIAMETER (MM) |
|---|---|
| 3 | 14.0 |
| 3.5 | 14.4 |
| 4 | 14.8 |
| 4.5 | 15.2 |
| 5 | 15.6 |
| 5.5 | 16.0 |
| 6 | 16.45 |
| 6.5 | 16.9 |
| 7 | 17.3 |
| 7.5 | 17.7 |
| 8 | 18.2 |
| US SIZE | INTERNAL DIAMETER (MM) |
|---|---|
| 3 | 14.0 |
| 3.5 | 14.4 |
| 4 | 14.8 |
| 4.5 | 15.2 |
| 5 | 15.6 |
| 5.5 | 16.0 |
| 6 | 16.45 |
| 6.5 | 16.9 |
| 7 | 17.3 |
| 7.5 | 17.7 |
| 8 | 18.2 |