Product review (5 stars): Good product.
Works very well to reduce the disposal noise. You cannot buy this at stores like Home Depot or Lowe's. Glad to have found it at Amazon.  InSinkErator apparently does not make this anymore.  The one sold in store does not work as well, that was the reason I looked at Amazon. I bought two.  Easy to clean, just drop it on the top rack of your dishwasher.