Customer reviews

4.4 out of 5 stars
4.4 out of 5
2,156 customer ratings
5 star 69% (69%) 69%
4 star 14% (14%) 14%
3 star 7% (7%) 7%
2 star 4% (4%) 4%
1 star 6% (6%) 6%
How does Amazon calculate star ratings?