Customer reviews

4.5 out of 5 stars
4.5 out of 5
553 customer ratings
5 star 72% (72%) 72%
4 star 14% (14%) 14%
3 star 8% (8%) 8%
2 star 4% (4%) 4%
1 star 2% (2%) 2%
How does Amazon calculate star ratings?