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 picks are great, and I love the bright colors of the thumb picks. My only complaint is that they can be a little difficult to get tight enough on my small fingers (I'm a woman) without overlapping the ends, but they still work just fine most of the time.