Envy Screen Guards are made from Optical Grade Crystal Film which are custom cut to ensure a perfect fit every time. Constructed in layers, a scratch resistant surface polymer, a hardened protective mask to prevent deep cuts damaging your device and finally a patented silicone gel that creates a vacuum to securely 'cling' to the device screen. Envy Screen Guards use no adhesive and there is no spraying anything to the protector or the device. Features & Specs Made From Optical Grade Crystal Film With Attaches Smoothly and Self-Adhering Surface For Easy Installation High Definition Transparency Film That Ensures Maximum Resolution. Real Touch Sensitivity For a Natural Feel That Provides Flawless Touch Screen Accuracy. 99% UV Protection: Reduces Eye Strain Caused By The LCD Screen. Pre-Cut To Fit Your Screen Exactly . Scratch Resistant Coating. Washable And Reusable . Package includes3 Pcs Clear Screen Guard, Cleaning Cloth .