since I had an accident the day after the installation and my phone dropped down from my pocket but only the screen protector was cracked and my screen was saved so they do their purpose

Same day it fell out of my coat pocket and shattered the screen.

Two days after my screen protector was installed, crack

Then one day my husband knocked my phone over and it landed facedown on hard bumpy stone paving.

So as great as they are price wise, my phone is now less protected because the only case I can use is a cheap, flimsy, thin rubber one.