Our puncture using a electronic version of the tutorial， you can contact customer service if needed， free of charge. 

[Brand]: Gold Jewelry 

[Name]: tongue studs， tongue rings 

[Material]: 316L Medical Steel 

[Size]: 

Silver， rod rough 1.6MM， rod length 15MM， ball diameter 6MM， ring inside diameter 13MM. 

Color: black or silver 

[Features]: Medical steel material wears no inflammation， no allergies. 

  Merchandise using aseptic packaging， packaging as shown