General Spec Type frosted screen film Function protect your screen confidential in public areas Compatibility iPhone 4G Features Help you protect your screen confidential in public ares. LCD screen will be completely black when viewed from left or right at a 30 degree angle. The hard coating layer protects the fragile LCD screeen from scratches, abrasions, fingerprints and smudges. Reduce glare up to 99% as well as reflection,helps to eliminate eyes strain. Anti-static. Anti-ELF/VLF E-filed radiation. Easy on easy attach ment. No residual. Enhace contrast. No-blurring or distortion.