LAX Gadgets Premium Real Explosion-Pro Tempered Glass Film Screen Protector for Samsung Galaxy S4 - Retail Packaging - Clear Perfect Anti-scratch: 9H greatly intensified surface hardness which is 3 times stronger than regular PET film. Even sharp objects like knives and keys will not scratch it. Delicate Touch: No interference on touch screen responsiveness Tempered glass film provides super smooth touching as well as no lose in touch screen sensitivity. 0.3mm Ultra-thin, specially made with scratch resistant material and rounded edges for a more precise fit. Coming with a screen polishing cloth and an alcohol wipe, helps you wiping away marks and fingerprints during the easy installation, remember not to fold the tempered glass film when installing. Surface hardness : 8-9H for extreme scratch resistance Oleo phobic Coating: resists fingerprints and other contaminants and makes the film easy to clean. Best Clarity: Premium tempered glass