To calculate the overall star rating and percentage breakdown by star, we do not 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.
Excellent item. Really useful small dispenser with reel of magic tape - which really is! Magic tape is brilliant, I don't bother with ordinary sticky tape anymore. It lasts well and you can also write on it.