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 ordered this product to keep documents save from water and fire damage. I tested it in water and had no problem but the burn test didn’t pass. The corners begin to melt almost immediately. I wouldn’t recommend for fire protection.