Adopted HD anti-spy material, effectively protect personal privacy and bring a clear and comfortable front use angle at the same time. The surface adopts the diamond nanoplating crystal process, which will not leave scratches after tens of thousands of times of rubbing, bringing long-lasting protection. Oleophobic treated surface eliminate fingerprints and oil stains on your phone screen. Made of improved 9H hardness alumina silicon glass, higher density, 3 times harder than ordinary ones.