1, find a key chain that is bigger than the trouser button and can be completely inserted into the trouser button.
2. Put it on the head of the pants zipper, just like putting a key on it at ordinary times.
3. At this time, there is a big ring on the buckle of trousers. When wearing pants, just put this ring on the button of jeans and button it.
4. In this way, the zipper head has a fixed traction, which perfectly solves the problem under the zipper of trousers, and the iron ring on the button will not be exposed after the trousers are buckled, which neither affects the appearance nor is very practical!