Product review (5 stars): Great for InSinkErator Evolution Disposers
It fit perfect with my Evolution Essentials Disposer.  I purchased the disposal brand new online (off a plumbing site) for less than Home Depot or Lowe's.  My disposal did not come with this baffle (as opposed to other reviewers).  It fit perfectly and works great.

Make sure you read that it is for InSinkErator Evolution Disposers.