Inch, 2.5mm apart in sizing to get rings that would fit perfectly. The new rings are called Xact-Fit. Now we make 14 Xact-Fit rings sizes where other manufacturers make only 3 to 5 sizes in this same range. We made them not too stretchy, so the rings are effective, but easier to get on and off than a metal ring.
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nWe know you will be surprised at how this sizing makes all the difference. Made of a plush soft touch silicone the Xact-Fit ring is premium quality and incredibly strong. Each Xact-Fit ring is stamped with its size so no more guessing! Stack the rings for additional fun. If you if have favourite sizes you can order the perfect Xact-Fit size individually in the future.
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nSize 17
nDia. 1.7 Inches. Cirum. 5.3 Inches
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nSize 18
nDia. 1.8 Inches. Cirum. 5.7 Inches
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nDia. 1.9 Inches. Cirum. 6. Inches
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