Pros: Blade Material, Sheath/Scabbard, Handle Material, Weight, Overall Quality, Blade Sharpness
Simple and working design is wisdom
To remove it from sheath just grasp, with only one hand, the handle of the knife in the right way then push your thumb against the sheath corner. Also. After removing the knife from the sheath, with this simple move, you find your thumb being placed on the special dents on the spine of the knife thus having an immediate secure grasp to do whatever you need to in an emergency situation. This is the main purpose of neck knifes, to have them handy at an easily approachable spot for either hand to use in emergency.