Ring Size

 Ring size is the measurement used to denote the circumference (or sometimes the diameter) of rings that are made of jewels and rings that are smart.



 



 Instruments to measure



 



 An analogic sizing stick for rings



 Measurements of ring sizes can be done with a paper, metal or plastic ring sizer (as an indicator) or by measuring the inner diameter.



 



 Ring sticks are used to determine the inner diameter of rings. They are generally made out of delrin, plastic, wood. They can also contain different types of materials. For exact measurements, digital ringsticks could be employed.



 



 Measuring systems



 International standard



 ISO 19865:2016 defines standard ring sizes by the inner circumference of the ring as measured in millimetres. ISO sizes are commonly used in Austria, France, Germany, Belgium, Scandinavia (Norway, Sweden, Denmark, Finland, Iceland), and other countries in Continental Europe


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