Customer reviews

3.9 out of 5 stars
3.9 out of 5
57 customer ratings
5 star 61% (61%) 61%
4 star 9% (9%) 9%
3 star 4% (4%) 4%
2 star 9% (9%) 9%
1 star 17% (17%) 17%
How does Amazon calculate star ratings?