Customer reviews

4.1 out of 5 stars
4.1 out of 5
159 customer ratings
5 star 57% (57%) 57%
4 star 15% (15%) 15%
3 star 16% (16%) 16%
2 star 4% (4%) 4%
1 star 8% (8%) 8%
How does Amazon calculate star ratings?