If you plan to buy a bracelet you like online, you must first measure the diameter of the bracelet you are wearing. You can find a chance to try on the size at the jewelry store first. Jewelry stores generally have calipers. Now the caliper directly indicates the inner diameter of the bracelet, from the smallest 50 to the largest 72. If you only know that the circumference is 16, then divide it by 3. 14, and the data obtained is the inner diameter of the bracelet.
3, you can also use the red line to measure the size of the bracelet, because the size of the bracelet depends on the diameter of the inner ring of the bracelet. Keep your thumb and tail fingers as close as possible. Ask a friend to help you measure the length of mm with a soft ruler and divide it by 3. 14, which is the inner ring of your bracelet. Friends who like to be slightly loose or tight can add or subtract 10-20 mm before and after, not too big.
4. In addition, when choosing to wear a bracelet, you should be able to put the bracelet into four long fingers (except the thumb), which makes it feel a little tight to reach the tiger's mouth. Then take off the bracelet and measure the inner diameter, for example, just 55 mm, then this size is suitable for your collar. Some people like to dress loosely. When choosing, they chose the coil size of 1-2 mm, which is more convenient to put on and take off. However, the suitable inner diameter for most people is between 55-57 mm, so 55-57mm is the standard size of jade bracelets on the market.