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Quantity
1
UK SizeUS SizeInside Diameter (mm)Inside Circumference (mm)
J
5
15.6
49
K
5.5
16
50.3
L
6
16.4
51.5
M
6.5
16.8
52.8
N
7
17.2
54
O
7.5
17.6
55.3
P
8
18
56.6
Q
8.5
18.4
57.8
R
9
18.8
59.1
S
9.5
19.2
60.3
T
10
19.6
61.6
U
10.5
20
62.8
V
11
20.4
64.1
W
11.5
20.8
65.3
X
12
21.2
66.6
Y
12.5
21.6
67.9
Z
13
