Size guide
Size Guide.
UK size | US size | Inside diameter (mm) | Inside circumference (mm) |
---|---|---|---|
A | 1/2 | 12.04 | 37.8 |
B | 1 | 12.45 | 39.1 |
C | 1 - 1/2 | 12.85 | 37.8 |
D | 2 | 12.04 | 40.4 |
E | 2 - 1/2 | 13.26 | 41.7 |
F | 3 | 13.67 | 42.9 |
G | 3 - 1/2 | 14.07 | 44.2 |
H | 4 | 14.48 | 45.5 |