Each pack contains 10 pin keepers.

Great alternative to those standard ugly butterfly clutches and the rubber backs. These pin backs are very easy to use; No Tools Required; 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, High Security, No painful finger stabbing, No pin post protruding any more!