[Measurement tool size] Metal ring rod measurement tool, US size is 2-15, European size is 41-76 (half size, no quarter of size). The specifications of ring grading: 0-13 (including half size, a total of 27 rings). Plastic ring hierarchical leather: 1-17. [High -quality material] Circular grading movement shaft is made of aluminum. 27 -piece ring measuring meter is made of stainless steel, long use time [Useful tools to choose a ring] With the ring rules, you can easily know what size ring you need, and you can also give your husband/wife, girlfriend/boyfriend a surprise, give her/his correct size ring As a gift Easily [measure size] The fingers made of ring size or High-quality materials can measure the finger size of your ring finger. There are several sizes, and each ring is clearly marked with a loop size increase in full size and half size. The workmanship is fine and round, the edges are smooth and not hurting the hands Tip: We are replacing the old packaging with new packaging, and you may still receive the old packaging of the ring classifier, Weight: 0.50926782522 pounds, Manufacturer: NONDK