These really work and a great idea

A great idea that is executed well - the two sides are in fact distinct and appropriate for different circumstances.

I love the idea of the key-chain one, it's attached to my bag, so I'm never without one

Just got this, what a great idea

Great idea.

Excellent idea

I liked the idea of this product because it didn't involve liquid and it did work to clean a little bit, but my cell phone has serious smudges from using it regularly and this just didn't do the trick.

They thought they were a neat idea

Good idea but this product just didn’t work for us at all

And it may seem a good idea to have a cleaner as a keychain but the design is flawed and if you aren’t careful you’ll scratch that screen

two small and one big screen cleaner as they are very useful.