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.
These are fabulous for the application I needed, great for laminating paper napkins with a sheet of copy paper between layers, they come out feeling like vellum. Great price as well including the fast delivery, Many thansk.