These bumper cases are made specifically for Apple iPhone 4 and Apple iPhone 4S. It is also been tested and proven that phone signals wont be interfered when the iPhone metal bumper case are installed.
Most of the iphone bumper cases are made of two pieces of metal. Installation of the bumper cases are fast, easy and straight forward. Screws and screw drivers are provided in the package.
There is also an opening sim card slot at the side of the iPhone bumper case that made easy for sim card swapping so that you dont need to unscrew your bumper cases to reach the sim card slot.
The bumper cases has all the proper opening slot to allow you to access to all the functionality of your phone. So you can enjoy your favorite pictures and movies on your devices while the iphone bumper cases protects your phone from scratches and damages.
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