Customer reviews

3.7 out of 5 stars
3.7 out of 5
5 customer ratings
5 star 39% (39%) 39%
4 star 37% (37%) 37%
3 star 0% (0%) 0%
2 star 0% (0%) 0%
1 star 24% (24%) 24%
How does Amazon calculate star ratings?