BRITISH : L1/2 to X1/2
FRENCH : 52,3/4 to 67,1/2
GERMAN : 16,1/2 to 21,1/4
SWISS : 12.75 to 27.5
Metric Diameter : 16.51 mm to 21.49
Metric Circumference : 51.5 mm to 66.6
Please indicate the size you need in note to seller during check out .
See our Shop Policies if you would like to know more about us
and for the terms & conditions.
Thanks for taking the time to visit our shop : http://www.etsy.com/shop/CatherinetteRings
Have any questions? Contact the shop owner.