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Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
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 analyzed reviews to verify trustworthiness.
Didn't know how they would be until I got them, a breeze to install and do what they are intended to do Protect the areas that usually squeak. However, they took a while coming from overseas but worth the wait.