Product review (5 stars): Fits KitchenAid 5 quart glass bowl
I bought a KitchenAid 325 watt tilt head stand mixer with a 5 quart glass bowl and wanted a lid to cover the bowl when not in use. This is a good quality lid and fits perfectly.

My glass bowl has a outside diameter of exactly 9". I found trying to determine which lid fit my particular bowl a little confusing, so hopefully this will help.