Size Chart

Size	Inside Diameter (in)	Inside Diameter (mm)	US Size	EU Size
c	0.48	12.11	1.75	40
d	0.52	12.84	2.25	41
e	0.53	13.57	2.75	42
f	0.55	13.97	3.25	44
g	0.56	14.38	3.75	45
i	0.59	15.10	4.5	47
k	0.62	15.90	5.5	50
l	0.64	16.31	6	51
m	0.65	16.71	6.5	52
n	0.67	17.12	6.75	53.5
o	0.69	17.53	7	55
p	0.70	17.93	7.5	56
q	0.72	18.34	8	57
s	0.75	19.15	9	59.5
u	0.78	19.81	10	62.5
w	0.81	20.61	11	65

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