Amzer Privacy Protector Shield for BlackBerry Storm 2 9550 Screen will be completely black when viewed from left or right at the 35 degree angle. Maintain the privacy of your screen when you are in a crowded area, such as bus, train, airplane, etc. Attaches smoothly with self-adhering surface; leaves no residue when removed. Privacy filter is manufactured to provide thick, durable, transparent surface without affecting the touch-screen features. 99% UV Protection: Reduces eye strain caused by the screen.