BodyGuardz Pure Glass Screen Protector for Samsung Galaxy Alpha (SM-G850) Protection - 9H surface hardness surpasses steel, offering superior durability and scratch prevention, as well as shock, heat and chemical resistance Appearance - A smudge-resistant coating prevents fingerprints and facilitates cleaning Functionality - A thin .4mm thickness allows for greater touch sensitivity and exceptional form factor Safety - Anti-shatter glass minimizes risk of injury if the glass is broken -- A thin .4mm thickness allows for greater touch sensitivity Ease of Use - A special adhesive makes application and removal a snap (installation very easy)