HRP Ring Size Guide
| HRP Size | Small | Medium | Large | X Large |
| Internal Diameter (mm) | 16.79 | 17.58 | 18.76 | 19.94 |
| Internal Circumference (mm) | 52.56 | 55.00 | 59.00 | 62.52 |
| British UK | M | O | R | U |
| Europe | 12.56 | 15 | 19.00 | 22.52 |
| Japan | 12 | 15 | 18 | 22 |
| USA | 6.25 | 7.25 | 8.75 | 10.25 |
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This product can only be delivered to address to UK mainland addresses (including Northern Ireland).
Your order will be rejected if the delivery address does not match your home address.
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