Product review (3 stars): Flimsier material being used
These are definitely not the same quality bags that were delivered as samples with my new Kitchen Aid trash compactor a few months ago.  I even called Whirlpool to verify, as the part number was the same as on their website.  These fit just fine, and the buttons do keep the bag in place, avoiding that annoying slippage every time you compact.  BUT, every time I remove a bag to change it, there are small tears all along the sides, as if the plastic were catching on something.  Now I know there's nothing rough or sharp on the interior walls of the appliance, so I have to chalk this up to flimsy plastic material.  It's annoying, since I have to insert the full bag either into a trash bag or a fresh compactor bag before hauling it off to our local dump.  While I never put food or unrinsed food packaging into the unit, I still don't need anything leaking out on the way there.  At full price these would be a definite no, but at $39 and free shipping, I can live with it.