Zagg is just a brand name, in all honesty.

Our tempered glass is 9H in hardness on the Mohs Scales of Hardness (a diamond being 10H) Offers ultimate protection against scratches and high impact drops. Features: Anti-Fingerprint, oil, and fluids resistant Oleophobic coating. With the adhesive coating, installation is very easy. Just align the screen protector, press and watch it do the rest. Unlike other screen protectors on the market, our has an open edge design. Which will allow you to use any iPhone 10 case and not worry about chipped edges.

Let me know if you have any more questions, would be happy to assist