9H Strong Hardness Anti-Scratch, 0.3mm thickness, three times stronger. Coated on the back with a strong silicon adhesive makes installation easy. Attaches the film firmly so as to not affect the touch screen sensitivity. Made of Chemically Processed Glass Which Gives An Excellent Display, High Screen Sensitivity And Comfortable Feeling to Touch Compared with a Normal Screen Guard. Resist Scratches And Damage From Sharp Objects High Rate of Light Penetration Enjoy the Retina of Apple iPhone. Anti-Oil/ Water Coating, Avoid Smudges And Reduces Fingerprints