Let me start by saying these stickers are WAY more convincing than I expected. The bold yellow design with 'GPS TRACKING' in all caps looks legit enough to make any thief think twice. I slapped them on my Honda Civic's windows, and honestly, they blend in like factory-installed security decals.

The adhesive is no joke – these babies stick! After 3 months through rain, snow, and car washes, they haven't budged an inch. Pro tip: Clean your window thoroughly before applying or you'll be fighting with bubbles.

Size-wise, the 3"x1.5" is perfect – noticeable without being obnoxious. The set of 8 means you can tag multiple vehicles or go crazy with placement (I put one on each side window and my rear windshield).

Now the big question: Do they actually deter theft? While I (thankfully) haven't had my car stolen to test this, the psychological factor is real. Would-be thieves scanning parking lots will likely move to an unmarked vehicle first. As one user said, 'Whether you have GPS or not, it's a clear deterrent.'

Only gripe? The backing shows white if placed on clear glass from outside. Solution: Stick them on tinted windows or use the front-adhesive versions for windshields.

For under $10, this is one of those 'why not?' purchases. Even if it stops just one break-in attempt, it's paid for itself ten times over. Just don't expect them to replace an actual GPS tracker – these are purely for show.