Customer reviews

4.2 out of 5 stars
4.2 out of 5
1,314 customer ratings
5 star 47% (47%) 47%
4 star 32% (32%) 32%
3 star 13% (13%) 13%
2 star 4% (4%) 4%
1 star 4% (4%) 4%
How does Amazon calculate star ratings?