To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
I bought product to keep in my vehicle in case I experience some unknown emergency. So I have not opened it or had the opportunity to us it. But, trusting it will work as you described it would. SO Currently, this is my reason for rating at a 1 star rating.
Absolutely awful. I opened one just to check it out, make sure they would actually be reliable, etc. IT RIPPED AS I UNFOLDED IT! So glad I didn’t embarrass myself handing these out.
Cheap awful garbage. I cannot believe I paid money for this. One would be better off wrapping themselves in aluminum foil, which is thicker than whatever this is. If I ended up needing one of these, I would’ve been screwed since this one split down the middle and all that remains is a gaping hole.