Anti Blue Light Tempered Glass Screen Protector: 9H Hardness Tempered Glass Offers Ultimate Scratch Protection Block Harmful Blue Light & Protect Eyes: Have you experienced eye-fatigue, eye-strain, loss of vision, sleeplessness after using your phone/tablet? It’s because of blue light from screen. This glass blocks harmful blue light and ultraviolet rays of your device's screen Easy Installation: Japanese High-Quality Anti-Bubble Adhesive Makes Installation Process very straightforward Precise Fit: Precise Laser Cutting Provides Maximum Screen Protection What You Get: ZenHoo Tempered Glass Screen Protector, Dust Removal Sticker, Bubble Removal Card, and Installation Guide