Link to video showing fingerprint usage. (Might be faster if I redo them but I'm lazy
Scroll down and you should see the old one I used and removed, came off easily without cracks, might be reusable if I get isopropyl alcohol to clean glue on the base off.
Also the bubble you see were formed when I stored it and not when I installed it.
Only 1 bubble formed when I installed it and I had it for 3 days. It was small but my OCD made me ask for a replacement which I got in 2 days! (Amazon prime)