It utilizes a combination of a magnet and a plunger, the magnet having {TAIL ~ a sufficient force} to keep the plunger attached but not strong enough to prevent the plunger from dislodging from {HEAD ~ the magnet} when a user snaps the device 
It utilizes a combination of a magnet and a plunger , the magnet having { TAIL ~ a sufficient force } to keep the plunger attached but not strong enough to prevent the plunger from dislodging from { HEAD ~ the magnet } when a user snaps the device
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH