Customer reviews

4.4 out of 5 stars
4.4 out of 5
1,290 customer ratings
5 star 77% (77%) 77%
4 star 7% (7%) 7%
3 star 5% (5%) 5%
2 star 4% (4%) 4%
1 star 7% (7%) 7%
How does Amazon calculate star ratings?