The only case worth wearing on a beautiful mobile phone! It doesn't add bulk, it doesn't distort the lines of the phone, it doesn't leave fingerprints, and essentially it's free.
However, be careful! It's cheap because it's disposable. In other words, if the phone falls and doesn't break, chances are the case will break and you'll have to buy another one. This is the only disadvantage, but it ceases to be a disadvantage since it costs so little.
P.S. It only protects against scratches, of course