0#(金狮牌)
Spring press stud
Size: have 0#, 1#, 2#, 3#, 4#  for choice;
Material: iron made, zinc made for choice;
Color: silver, black for choice

揿钮
型号有0#, 1#, 2#, 3#, 4#可供选择；
材质：有铁或锌铜合金可选择
颜色：白色、黑色可选择