Processed by German imported high-precision CNC numerical control machine,Fine milling by carved technology,Arc edge accuracy is only 0.1mm,The curved surface completely bonds with iPhone’s screen.Anti-fingerprint, Oil Resistance,Anti acid and alkali.9H surface hardness, scratch-resistant.Film remains unchanged even ruptures. No debris.Light transmittance is up to 99.9%, Keeps the screen clarity.Adsorbs quickly. Can be repeatedly used after washing.So superior 3D tempered film,With such excellent iPhone,Like a match made in heaven,Provides you perfect experience. Tips: The thickness of this product mentioned in the description and picture refers only to the thickness of the glass. AB glue is not included in the thickness.