We were sent these tempered glass screen protectors from ZNitro to review. ZNitro cases are claimed to be Hammer Tested™, scratch proof, resistant to smudges and fingerprints, and have superior hardness. Here's a video that shows how to apply, and shows the hammer test as well as its scratch resistance. I did not do the hammer test on my phone. I did place the … [Read more...] about ZNitro Glass Screen Protectors