Customer reviews

4.5 out of 5 stars
4.5 out of 5
389 customer ratings
5 star 78% (78%) 78%
4 star 7% (7%) 7%
3 star 6% (6%) 6%
2 star 3% (3%) 3%
1 star 6% (6%) 6%
How does Amazon calculate star ratings?