Made with high quality 0.39 mm thick premium tempered glass with rounded edges. Extremely high hardness: resists scratches up to 9H (diamonds are 10H on Mohs Hardness Scale). High transparency: 99% light transmittance. Smooth, precise and responsive touch response. Dust-free, fingerprint-free, one-push, super easily installation, bubble free. Phone case-friendly — due to the round edge of some devices, the screen protector will not cover the full screen, but only the flat area. Not compatible with curved screens. Package includes 2-pack tempered glass screen protector, cleaning cloth, dust removal stick and instructions.