微戒指硅微戒指、铜戒指是的

Silicon micro ring make of aluminum an there is a silicon tube inside. also have the copper ring with silicon tube inside. the micro ring with a soft silicon tube inside can be protect your hair very well. SIZE:4027,4530,5028 micro ring, also have same size with screw inside. silicon micro ring also have 45mm,50mm,different size to choose. you can choose the color the color chat. welcome inquire freely