How many grams of gold is the longevity lock?

Within 20 grams. If it is pure gold, considering the child's physical condition, the weight of the longevity lock will not be too heavy, and the gold longevity lock and chain will not exceed 20 grams, so the longevity lock gold is generally within 20 grams. The longevity lock, also known as the "name lock", evolved from the "longevity rope" and is a child-rearing custom in China, which is popular all over the country. Longevity locks are mascots and decorations. It is actually a kind of metal (mostly silver) ornament, which looks like an ancient lock with the words "long life" and "long life and wealth" engraved on it.