Forged from tempered glass, these screen protectors undergo a hit from a hammer before they are approved to protect your precious device. in addition to their impressive impact strength, the tempered glass screen protectors resist scratches and display none of the finger distortion or drag that often comes with cheap plastic screen protectors. even with this brawny engineering, the tempered glass remains nearly invisible and leaves no sticky residue or any marks behind if you decide to remove it. premium tempered glass is shatter-proof meaning it wont splinter into sharp fragments, making it safer than regular glass. to top it all off, this screen protector has an oleophobic coating that makes it resistant to fingerprints.