IMPORTANT SAFETY INSTRUCTIONS CAUTION: ms POLARIZED investment cord set it has a Notarized Plug (ons bias Is wider Ahab the other) and a Polarized Outer one: sit s longer than the other) The plug is not Intended to be mated with on-polarized outsets (having both sits the same size). A Polarized Outset Is Intended to mate wit a Polarized Pug In ony one way the longer soot with the wider biased.