Cell phone locking is really just a way to create additional friction for average people switching carriers, encouraging them to stick with their current carrier instead of looking around for a better price. (howtogeek.com)
It will not create additional friction on your toes or your soles. (geekwrapped.com)
Its fully synthetic formula contains additional friction modifiers for clutch - type limited slip differentials, providing superior limited slip operations under extreme loads and temperature. (ecstuning.com)