Customer reviews

4.2 out of 5 stars
4.2 out of 5
688 customer ratings
5 star 65% (65%) 65%
4 star 12% (12%) 12%
3 star 8% (8%) 8%
2 star 6% (6%) 6%
1 star 8% (8%) 8%
How does Amazon calculate star ratings?