The ancients often liked to carve the auspicious seal of "name+innocence". You can choose small Yin Zhangshi with good appearance (such as Shoushan Red Hibiscus, Shoushan Peach Blossom, Shoushan Cinnabar, Bahrain Chicken Blood and Changhua Chicken Blood). ) and engraved "XX (child's name) innocent". When a child is young, he can wear the red rope as a pendant around his neck, and when he is older, he can take it off as a seal.