Review: Does a very good job of removing smudges.
Rating: 5 out of 5
Date: 02 20, 2013
This has two sides:  the gray side to remove dust, and the black side to remove smudges.  The both work well, but since I have more problems with smudges on my Fire, I use the black side more often.  You use the inclosed spray bottle to spray plain water on the screen cleaner, then you use the screen cleaner to wipe your tablet.  While it doesn't say to, I use filtered water, because I have hard water in my home.