Empresses and concubines in the Qing Dynasty liked to keep their nails. Generally speaking, it takes more than half a year to grow a nail about an inch long, and it will crack and break if you are not careful. In order to protect this slender nail, you put a protective cover on your finger. This is what people usually call finger protection. All fingers can be worn except the thumb, symmetrically, with one hand or one finger. The fingernails of the Qing Empresses and concubines were made of gold, silver, jade, tortoise shell, copper, enamel and other materials. By using decorative techniques such as hollowing out, chiseling and inlaying, the size of the pattern is gathered from the base to the fingertips, which is natural and smooth. The back is mostly carved with flowers, which can make the air circulate. In summer,