Customer reviews

3.4 out of 5 stars
3.4 out of 5
39 customer ratings
5 star 37% (37%) 37%
4 star 16% (16%) 16%
3 star 17% (17%) 17%
2 star 11% (11%) 11%
1 star 20% (20%) 20%
How does Amazon calculate star ratings?