A:AnswerThis is a military grade substance, I assume a hybrid of some sort. It is not pure glass. It is perfectly clear and seems extremely durable. I give it 10 out of 10. It is beautiful. Would have purchased for my new 12 Pro if I had known about it before purchasing another brand case that came with a hybrid screen protector. I did my research - I did not want glass because I've seen too many others' phones with cracked glass screen protectors. I purchased this for my iPhone 6 to replace the Otterbox plastic cover that was pretty beat up. Makes my old iPhone 6 look spectacular. Am keeping it as a backup phone.