Product review (2 stars): No good!  Look elseware.
The splash guard is an epic failure.  It is way too tight to allow anything to go down, including water at times!  It will certainly prevent splashes when you are running your disposal but if you actually want to put any waste into the disposal you will find yourself attempting to jam the food down through the splash guard, or pulling it out so you can actually get something down.  I took some scissors and clipped it to make the hole bigger.  Look for something else.