Customer reviews

4.5 out of 5 stars
4.5 out of 5
744 customer ratings
5 star 67% (67%) 67%
4 star 22% (22%) 22%
3 star 7% (7%) 7%
2 star 3% (3%) 3%
1 star 1% (1%) 1%
How does Amazon calculate star ratings?