I bought 3 packs and had to get replacements. In the first set, all three defenders had the same dead zones. I read the instruction manual and applied exactly what was said for the first one. The second I tried to apply after watching their videos. It had similar dead zones where it just wouldn't stick to my screen. The third had the same stains so I think it was just a bad batch. After contacting customer service to get the replacement I ordered, the next one went great. I put all my screen protectors on so I'm not new to this but wanted to make sure I followed their instructions anyway. The first protector from the second set fits perfectly, sits perfectly and looks perfect. The tool they provide to focus a defender is truly amazing. None of my other kits I've used came with this, and it's a very useful little tool. I recommend this kit but be aware that the air bubbles can take some time to get rid of and if they don't work it could just be a patch with no glue. Revain will definitely work with you to resolve the issue. Overall I'm very happy with the product and if I need anything else I'll just order from here.
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