Work Great, Nice that They're Two-Sided
Four Pack should last a good long time.  I've been using one for a couple of weeks and it doesn't show any signs of wear.  The aggressive side is not so aggressive as to tear up the skin - I've had some in the past that did. Ouch!  The smooth side is great for a final smoothing.  I've included a photo showing the exact size of the pads.  One slight negative, and I don't know whose fault it was, but one of the pads arrived broken.  Looked like it could have been packaged better.  Despite that, highly recommended.
Rating: 4 stars