Product review (1 stars): An abject failure
My SInkmaster "Special Edition" model needs to have the splash guard replaced every 18  to 24 months or so; otherwise it becomes too loose and keeps popping out.  I bought these (per Sinkmaster, the #1025 is an exact match) but not at all happy with them. First of all, the rubber fingers are thicker and not nearly as pliable as what my previous replacement stoppers came with; so what happens food waste piles on top and doesn't fall through unassisted under its own weight.  So  then I have to use a spoon or fork to push the food through.  Then the fingers create too much backwards resistance so that when trying to withdraw the utensil out pops the splash guard.  Compared to the replacements I've bought previously the circular fit is way too loose; not near enough resistance to keep the splash guard positioned in the throat like it should be.

Possibly a different supplier made these; out of lesser-quality materials and less dimensional accuracy; I don't know.  Or possibly this was old stock, past its shelf life?  I bought three (I like to buy ahead of time) but regret my decision now.  I may go ahead and try cutting some fingers out (to improve ability to pass food waste) as well as wrap outer diameter with teflon or similar tape to increase frictional hold.