讯息： 21
语言: English
Bemused (显示个人资料) 2012年10月7日上午3:20:17
sudanglo:Well I for one would be most reluctant to pierce the leather of my innumerable leather jackets. And it could be uncomfortable sticking a pin into a T shirt. I wear these a lot in the summer.For leather jacket and T shirt friendly pins, Google "magnetic backed pins".
This site explains how they work, sorry I do not know how to embed the link, just copy and paste.
http://tech.3steps.com/reviews/magnetic-backing