Size Guide
Ring circumference (mm) FR US UK DE JP SW
15.29 48 4.5 I 8.5 8.5 8.5
15.92 50 5.2 L 15.5 10 10
16.56 52 6.2 N 16.8 12.5 13
17.20 54 7 O 17.2 14 15.2
17.83 56 7.8 P 17.5 15.5 16.8
18.47 58 8.5 Q1/2 18.5 17 18.5
19.11 60 9.2 S 19.2 18.5 20.5
19.75 62 10.2 U 20.5 20.5 21.5