Customer reviews

4.1 out of 5 stars
4.1 out of 5
497 customer ratings
5 star 56% (56%) 56%
4 star 17% (17%) 17%
3 star 13% (13%) 13%
2 star 6% (6%) 6%
1 star 9% (9%) 9%
How does Amazon calculate star ratings?