The packaging provided the directions in an easy to understand way. I was able to follow the directions in get the glass to attach to the phone quickly. I have had their protector on my phone for about 2 weeks now and so far there has been no lifting or any damage to the screen protector or my phone.
https://www.amazon.com/dp/B07GBT6ZLR/ref=cm_sw_r_other_apa_i_QtnfCbH3V5YXH