Just got these Osilly warning stickers for my car and wanted to share my thoughts after a week of use.

The quality is surprisingly good! The vinyl feels thick and durable, not like those cheap flimsy stickers. I stuck one on my rear windshield during a rainstorm and it held up perfectly - no peeling or fading.

I love how visible they are. The bold red/black design really stands out, especially at night when headlights hit the reflective surface. My neighbor actually asked if I installed a new security system!

Installation was stupid easy - just peel and stick. Though heads up: they're meant for OUTSIDE application only (which some reviewers seemed confused about).

Now the big question: do they deter thieves? Well, my car hasn't been broken into yet (knock on wood). While they're obviously not an actual GPS system, the psychological effect seems real. Even if it just makes thieves think twice, that's worth the few bucks to me.

Only complaint? The lettering could be more scratch-resistant. After a car wash, I noticed some minor wear on one sticker.

Overall? Solid purchase for peace of mind without breaking the bank on an actual alarm system.