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 |
Please note: The product you have added requires age verification to purchase. For more information, please check our delivery page.
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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