It's always a good idea to keep a set of lock picks on you, especially in sketchy situations. The handle end of each of the picks doubles as a tension wrench, making them the perfect kit for this discreet carry.
Built in same form factor as military issue dog tags. Can be worn around neck, stored on key ring, hidden under soles of shoes, included in survival kits, or tucked away anywhere you can imagine.
The set includes:
1 single hump bogota
1 triple peak bogota
1 saw