These screen protectors are great in theory and are brilliant quality BUT. Having bought two(one as a spare for future use) I proceeded to clean the Kindle fire screen as instructed and, when I thought it was absolutely spotless, started to apply the screen protector. NO CHANCE. Tiny specs of dust that could not be seen prior to apply the screen protector suddenly became massive air bubbles that could not be squeezed out with the smoothing tool. So as these bits of dust were now stuck to the screen protector it became useless.
Turn to the spare screen protector( Now I had learnt the pit falls of the invisible dust number two should be a doddle to fit) NOPE MORE SPECS OF DUST AND ANOTHER USELESS SCREEN PROTECTOR GOES IN THE BIN ! I will say the product is well made and a great idea but unless you fit them in a completely dust free environment and hold your breath until its fitted you will end up with tiny specs of dust being a large bubble feature on your kindle screen, not a good look.