Ring Size
Ring size is a measure that is used to indicate the circumference (or sometimes the diameter) of jewellery rings and smart rings.
Instruments to measure
A stick analogous in size to
Ring sizes can be measured physically with a plastic, paper, or metal ring sizer (as an indicator) or by measuring the inner diameter of a ring that is already fitted.
Ring sticks are devices that measure the inner dimensions of rings. They can be made out of wood, plastic, aluminum, or any of the other materials. It is possible to use digital ring sticks to measure precise measurements.
Measuring systems
International standard
ISO 8653 - 2016 defines standards for sizes of rings. It measures the circumference of the band in millimetres. ISO sizes are widely used in Austria and France, Germany (Belgium), France, Germany.

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