Reminding Zipper / pants zipper

We may occasionally forget to pull up our pants zipper, which bring us unnecessary embarrassment. Sometimes we have to turn back sercetly and zip. By observing the use process, we can found that when people button up first, they tend to forget to zip. The interesting thing is that people never forget to button up. Reminding zipper is combined with the pants button and zipper, and put them together as a whole. In this way, you can not button up when you do not put the zipper on. Reminding zipper uses the behavior that people never forget to button up to remind people to zip up.