Customer reviews

4.2 out of 5 stars
4.2 out of 5
6,873 customer ratings
5 star 62% (62%) 62%
4 star 16% (16%) 16%
3 star 8% (8%) 8%
2 star 5% (5%) 5%
1 star 8% (8%) 8%
How does Amazon calculate star ratings?