Customer reviews

4.4 out of 5 stars
4.4 out of 5
4,775 customer ratings
5 star 69% (69%) 69%
4 star 14% (14%) 14%
3 star 8% (8%) 8%
2 star 4% (4%) 4%
1 star 5% (5%) 5%
How does Amazon calculate star ratings?