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.
We bought two for our daughters for Christmas, one an 11 year old and the other 9. First chain broke within two hrs on Christmas Day, the second broke within the next week. Disappointed in the quality of this product