SNJHM 2 Pack Window Breaker Seatbelt Cutter and Glass Breaker, Car Window Breaker Seatbelt Cutter Glass Breaker Car Window Breaker, for Emergency Under Water Car Safety Tool

My Son had mentioned that in today's world, if a car went into the water, most likely there would be no way out because of the electrical windows and strength of the glass not breaking even with a hammer (not an item usually kept in the glove compartment).Then I saw an ad for these and realized the Breeker Brand was a must go-to, and what most pleased were the 2 pieces of glass included to test each one of these provided in the box.They both worked amazingly well with very little pressure, and the instructions included as to where to place this specifically on the doors' glass helped to understand quickly what to do IF an emergency happened with the windows being unresponsive - even on dry land!I have one for my car and one for my son's car and feel relieved in further being covered for the just-in-case emergency need! :)

I have no idea if this glass breaker actually works but I have to trust that it will. Just like to have it for just in case. Very reasonable and hopefully functional .

Fine for the right kind of windows, but took off a star because they fall off the holders. The included test glass is helpful for learning how to use them BEFORE you are in an emergency.

Powerful and it really shatters the glass.

Hopefully I never get to try the function of these but they appear to be well made and a good value. Cheaper than the original and I am sure would function as well. It’s equipment you hope you never have to use but good to have in every vehicle

So this does work and it even comes with a piece of glass so you can test it out. the only issue we had is the red one, the lids won't stay on either end so we didn't put this in our other car yet.

Not sure how to make it work

I hope I never find out if these work but they are well made and small enough to carry around or store in the car. These look like they will be helpful but I haven’t tried them on glass. These would be good for any driver as a gift or personal use. Price is great for two.