Product always matching the description of NOVAGO on 03/09/2015 at Amazon. The shell protects the phone well, not in any way obstruct the buttons. They allow the opposite to avoid unwanted key presses in the bag, for example. Adheres, in moderation anyway .. to surfaces such as glass table or a sofa taut weave. If the hull glides, it sufficed to clean it from time to time removed Phone! It is a definite plus for the use of smartphone, practical and effective. Under reasonable use, without throwing him to the ground, this case is quite suitable. With a more protective film on the screen, and voila. However, liquid droplets projections are not recommended, of course.