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.
They're expensive for what they are, but that's true of all bookends. They don't actually look like stone, and the pair I received are much darker than the picture, with far less colour gradation. But they're lovely, detailed, and have so far held many books (around 45) without sliding off my shelf. These warders are sure to suit most bookshelves.