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.
The metal clip at the top is incredibly loose and can't hold your paper securely to the board. The rubber band is nice for keeping the paper from flying away in a breeze, but the paper slides loosely around beneath it.