Amzer Privacy Screen Protector Filter Shield for Sprint HTC Hero Prevent and protect your screen from unwanted peepers, while keeping the screen clean and unscratched. Screen will be completely black when viewed from left or right at the 35 degree angle. 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-percent UV Protection: Reduces eye strain caused by the screen