I have the Kitchen Aid stand mixer than lifts the bowl up to secure under the beaters during the beating process.  This design made it a little more difficult and time-consuming to scrape the bowl and make sure it is mixing well.  Not any more!! This blade is wonderful, and it is very thorough in keeping the sides of the mixing bowl free of "missed" ingredients during the process.  Very nice item to add to my Kitchen Aid mixer!  And the price just could not be beat!