Customer reviews

4.6 out of 5 stars
4.6 out of 5
1,690 customer ratings
5 star 74% (74%) 74%
4 star 17% (17%) 17%
3 star 5% (5%) 5%
2 star 2% (2%) 2%
1 star 2% (2%) 2%
How does Amazon calculate star ratings?