| Size | Circumference(mm) | Diameter |
|---|---|---|
| 4 | 46.8mm | 14.9mm |
| 4.5 | 48mm | 15.3mm |
| 5 | 49.3mm | 15.7mm |
| 5.5 | 50.6mm | 16.1mm |
| 6 | 51.9mm | 16.5mm |
| 6.5 | 53.1mm | 16.9mm |
| 7 | 54.4mm | 17.3mm |
| 7.5 | 55.7mm | 17.7mm |
| 8 | 57mm | 18.1mm |
| 8.5 | 58.3mm | 18.5mm |
| 9 | 59.5mm | 18.9mm |
| 10 | 62.1mm | 19.8mm |
| 10.5 | 63.4mm | 20.2mm |
| 11 | 64.6mm | 20.6mm |
| 11.5 | 65.9mm | 21mm |
| 12 | 67.2mm | 21.4mm |
| 12.5 | 68.5mm | 21.8mm |
| 13 | 69.7mm | 22.2mm |
| 13.5 | 71mm | 22.6mm |
| 14 | 72.5mm | 23mm |
| 14.5 | 74mm | 23.4mm |
| 15 | 75mm | 23.8mm |
| 15.5 | 76.3mm | 24.2mm |
| 16 | 77.4mm | 24.6mm |
| 9.5 | 60.8mm | 19.4mm |
Size Chart
