Customer reviews

4.3 out of 5 stars
4.3 out of 5
4,405 customer ratings
5 star 65% (65%) 65%
4 star 15% (15%) 15%
3 star 9% (9%) 9%
2 star 5% (5%) 5%
1 star 5% (5%) 5%
How does Amazon calculate star ratings?