This is a PROTECTION DEVICE that attaches to your keys.It is also a tool for SHOT GUNNING beer.  Just use the point to hole the beer can.  
This is always with your keys is not bulky in pocket. This tool can also be used for self defense, place in hand with point down in palm curl fingers around and then hammer strike. This item is meant to cause pain to knock your attacker back.  THEN RUN. Also in palm of hand with fingers curled around it is now like having a roll of dimes in your hand for a punch.  THE BEST OF TWO WORLDS.

PARTY ON GARTH…..