Customer reviews

4.5 out of 5 stars
4.5 out of 5
663 customer ratings
5 star 82% (82%) 82%
4 star 6% (6%) 6%
3 star 2% (2%) 2%
2 star 1% (1%) 1%
1 star 9% (9%) 9%
How does Amazon calculate star ratings?