Listing says the privacy screen protector works with Samsung's fingerprint sign-in, but it does not. Could have gotten the same 2-pack for $3.50 but chose to pay more due to the guarantee that screen sensitivity wouldn't be affected.
I increased touch sensitivity to the maximum but that didn't help.
Also, the screen is still readable from the sides, just has a darker color to it. For this price it should be completely dark with nothing visible to others.
Finally, this item is not an exact fit for the screen size. It seems like they send a generic item that could be used with many devices, instead of something measured to exactly fit a specific model's screen.