The "card" they give you to push out bubbles is about as big as my thumb and bends under like 3 grams of pressure. Using the card to lift the protector back off (like the instructions tell you to do) rips up the glue underneath the screen. With both protectors, I had a bubble underneath, tried to push it out with the provided card, which is essentially just glorified cardboard, couldn't push it out because the card just bends, had to get under the glass to lift it off, and then mangled the glue. Both times. I was amazed the same thing happened both times considering how the reviews are mostly along the lines of "so easy to install, no problems at all, literally sent by God". Not to mention how painfully overpriced it is in the first place.