Customer reviews

4.2 out of 5 stars
4.2 out of 5
337 customer ratings
5 star 62% (62%) 62%
4 star 17% (17%) 17%
3 star 9% (9%) 9%
2 star 6% (6%) 6%
1 star 6% (6%) 6%
How does Amazon calculate star ratings?