| 摘要 |
A system for providing safe, effective ear-piercing is provided. The invention provides a safe earring nut for use in a stud gun system. The safe earring nut includes a shield that forms an intervening surface between a stud post and the wearer. The safe earring nut can be used in an earring cartridge which fits in a cradle of a stud gun for piercing. A vertically stackable packing box maintains a sterile environment in which the earring cartridge with a hinged hoop earring may be transported and stored. The stud gun can be loaded and unloaded using the packing box in such a way that the operator need not touch the cartridge during either loading or unloading.
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