The Otterbox Alpha Glass Screen protector is a screen protector with a difference. It has a hardness rating of 9H, which is the highest level on the scale of glass hardness. It’s an anti-shatter, anti-scratch protector that doesn’t interfere with the clarity or responsiveness of your device. It’s easy to clean, and it’s very easy to install. It comes with installation tools, and it leaves no residue. It’s compatible with the Samsung Galaxy J3 2017.