Know your size

Measure internal diameter of an existing ring

DIAMETER TWOJEYS
15.92mm / 0.626 inch 10
16.55mm / 0.651 inch 12
17.20mm / 0.677 inch 14
17.83mm / 0.701 inch 16
18.45mm / 0.726 inch 18
19.10mm / 0.751 inch 20
19.75mm / 0.777 inch 22
20.37mm / 0.801 inch 24
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