| SIZE CHART |
||||||
| Size 1 |
Size 2 |
Size 3 |
Size 4 |
Size 5 |
Size 6 |
|
| Inside diameter (mm) |
16.3 |
17.2 |
18.1 |
19.1 |
20.2 |
21.2 |
| USA & Canada |
5 3/4 |
6 3/4 |
8 |
9 1/4 |
10 1/2 |
11 3/4 |
| UK |
K 1/2 |
M 1/2 |
P |
R 1/2 |
U |
X |
| Germany |
16 1/2 |
17 1/4 |
18 |
19 1/4 |
20 1/2 |
21 1/4 |
| France |
50 7/8 |
53 3/8 |
56 1/2 |
59 5/8 |
62 3/4 |
65 7/8 |