The size of the finger is not constant, it also depends on your body type, physical condition and the time of year (temperature). Basically, most of us can have a one size difference in our fingers depending on the summer or winter. So the actual finger measurement should always take the season into account, so that the ring is not too tight in the summer and too loose in the winter, because in the latter case you can easily lose it. A good ring size is one where the ring goes on the finger easily when the ring is put on and goes off easily when the ring is taken off and can be removed by twisting/rotating it. At the fingertip it is natural for the ring to be slightly loose and even twist, this is when your knuckle is wider than your fingertip. If your finger is between two sizes and the ring is a thinner, round or semiconvex inside design, choose the smaller size, if you want a wider, rounded ring with a straight inside, go for the larger size. We recommend that you take the ring off when you are playing sports or are sleeping.