1, thin line measurement method: take a thin line with a broadband of 1 cm, which is inelastic and can avoid measurement errors. Wrap the thin thread around the root of the finger, mark the intersection of the thin thread with a marker pen, unfold the thin thread after marking, measure the length of the mark with a ruler, and find the number of rings corresponding to the finger circumference against the ring table after measuring.
2. Inner diameter measurement method: If you have the habit of wearing a ring all the time, you can take off the ring worn on your hand, measure the inner diameter of the ring with a ruler, and then compare it with the ring number table to find the appropriate ring number. Or take a piece of white paper, put the ring on the paper, circle the inner ring with a pen, measure the circumference of the ring on the paper with a ruler, and then compare it with the ring table.
Matters needing attention when measuring the ring mouth:
Some rings are inlaid with broken diamonds, and it is very troublesome to change them later, or even impossible to change them at all, so the size of the ring mouth must be accurately measured. For example, measure several times and take the average. Generally, the size of the left and right hands is slightly different. Measure which finger you want to wear. Old people or people with big finger joints can increase 1mm or 2mm on the basis of measurement.
Slogan is not necessarily an integer, but can have half a circle, such as 7.5, 8.5, 9.5, 10.5, 1 1.5 and so on. If it is as small as 10 and as large as 1 1, you can customize 10.5 turns. For some rings with wide arms, such as men's rings or couples' rings, the slogan should be slightly more than half of the ring. If you measure with a tool, there is a slogan of half a circle more than measuring a circle.