What does the golden lock mean in fortune telling?

How many grams is a gold longevity lock?

2 grams to 20 grams. The weight of the gold longevity lock is basically in the range of 2 grams to 20 grams, and it is generally hollow. This size of gold longevity lock is very suitable for children to wear, and gold longevity locks are all for children to wear, so the weight of gold longevity locks is generally not too large, and children may not be able to bear it, causing harm to cervical vertebrae.