名片盒保養
Card holder SELF maintenance

名片盒使用一段時間後,如開關位置有鬆開,
可以試試用手按壓上蓋兩片金屬,令它重新有咬合力。

If you find the latch loosening,
try pushing the 2 pieces of metal of the upper lid to make it tightened again.

cardcase maintenance