This protective cover is made of soft rubber and fits perfectly to the Samsung Galaxy S3. Also all the openings for connectors lying on directly. The switch for on / off and volume can be obtained by the rubber just hit without stalling a. Because it is so soft, it can be playing slightly and again make it. Nevertheless, the whole thing has a non-slip grip. The mobile phone is so great in the hand. Funny side effect: the pattern on the shell looks as if a car drove over it. I can definitely recommend this envelope further. I find it so much that I ordered another in a different color.