Size Chart
|
Internal Diameter (mm)
|
US/CAN Ring Size
|
UK/AUS Ring Size
|
German Ring Size
|
|
14.1
|
3
|
F
|
14
|
|
14.9
|
4
|
H
|
15
|
|
15.7
|
5
|
J
|
15 3/4
|
|
16.5
|
6
|
L
|
16 1/2
|
|
17.3
|
7
|
N
|
17 1/4
|
|
18.1
|
8
|
P
|
18
|
|
19.0
|
9
|
R
|
19
|
|
19.8
|
10
|
T
|
20
|
|
20.6
|
11
|
V
|
20 3/4
|
|
21.4
|
12
|
X
|
21 1/4
|
|
22.2
|
13
|
Z
|
22
|