XShields&copy; (4-Pack) Screen Protectors for Amoi N828, N818, N820, N850 (Ultra Clear) Made from the highest quality Easy Install Film Hard, glassy finish keeps your screen feeling the way it was intended to Allows your HD display to shine at its fullest potential while protecting from scratches Mess free dry installation requires no water for a perfect install. Installation has never been easier Lifetime XShields Manufacturer Warranty