1. Product: Ring Size Measuring Kit, a professional and accurate finger size measuring tool set. 2. US size range: Ring size measuring rod: sizes 2 - 15; Ring size measuring gauge: sizes 0 - 13 (including half - sizes, a total of 27 rings); Plastic ring size measuring tape: sizes 1 - 17. 3. The ring size measuring tools are made of aluminum alloy, with a smooth surface, rust - free, clear markings and relatively accurate measurement. The ring size measuring tape is made of elastic plastic, lightweight, durable, reusable and easy to carry. 4. Measuring tool sizes: The US size of the metal ring measuring rod is 1 - 15. Materials: The ring size measuring rod is made of aluminum. The 27 - piece ring size measuring gauge set is made of stainless steel with a relatively long service life. 5. A practical tool for ring selection: By using the ring measuring gauge, you can easily know the size you need. You can also surprise your husband/wife, girlfriend/boyfriend by giving her/him a ring of the right size as a gift. 6. Easy size measurement: The ring size measuring tool or finger measuring gauge is made of alloy metal and can measure finger sizes for ring making. It has fine craftsmanship, with a round outer shape, a flat inner surface and smooth edges, which will not hurt your hands. 7. The set includes: 1 ring size measuring gauge + 1 ring size measuring rod + 1 plastic ring size measuring tape.