Customer reviews

3.9 out of 5 stars
3.9 out of 5
2,109 customer ratings
5 star 55% (55%) 55%
4 star 13% (13%) 13%
3 star 9% (9%) 9%
2 star 7% (7%) 7%
1 star 15% (15%) 15%
How does Amazon calculate star ratings?