InSinkErator Garbage Disposal Jam-Buster Wrench is a quick and effective tool designed to help simple jams in InSinkErator garbage disposals without the need to remove the unit. This handy wrench works by inserting the hex end into the center hole at the bottom of the disposer and turning it back and forth to release the jam. It is specifically made to work only with InSinkErator manufactured disposals, making it an essential accessory for maintaining the smooth operation of your garbage disposal. Model Number: WRN-00