50 PCS Low Profile Locking Pin backs/Pin Keepers/Lapel Pin Backs; NO Tools Required;
Suitable for all pin post pins;
Great alternative to those standard butterfly clutches and the rubber backs;
These pin backs are very easy to use; Just push on the pin back to the pin nail and it is locked; the harder you pull the pin, the tighter it will lock; pull the spring loaded button at the rear, then the pin will be released ! Low Profile, smooth surface, No painful finger stabbing, No pin post protruding any more!