Inside circumference(mm)	Inside circumference (in)	Size
44.2	1.74	3
45.5	1.79	3.5
46.8	1.87	4
48	1.89	4.5
49.3	1.94	5
50.6	1.99	5.5
52	2.04	6
53.1	2.09	6.5
54.4	2.14	7
55.7	2.19	7.5
57	2.24	8
58.3	2.29	8.5
59.5	2.34	9
60.8	2.39	9.5
62.1	2.44	10
63.4	2.49	10.5
64.6	2.54	11
65.9	2.59	11.5
67.2	2.65	12
68.5	2.7	12.5
69.7	2.75	13
71	2.8	13.5
72.3	2.85	14

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