DX » Community » Reviews » 3-in-1 Safety Hammer + Seat Belt Cutter + Whistle Keychain - Black + Blue
Customer’s impression:
simple but effective
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  • posted byPaulux on 02/11/2015

    Pro: underwater ability to break a window Pro: Small so you can put it on a convenient spot without it being bothersome pro: belt knife con: none so far

    Impression:simple but effective;

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  • posted byKYP123 on 07/01/2014

    Basically, just press the blue stud at the end against the window to compress a spring in the mechanism. Continue pressing to a point where it sping back and a pointed hammer will hit the glass. I am not sure if the impact will break car window - I wouldn't try it on my car. It cause a pin size I... Read more

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