It does not take too much from this protection for iPhone: it is actually the most basic, but it's not a bad choice either. For an unbeatable price, you get a well-tailored silicone protection for iPhone 4 and 4S, and leaves open the various connectors, while the brand logo at the apple is still visible.
Effective against bumps and small falls, it will still invest in a screen protector sheet if you want to avoid scratches.