Customer reviews

4.1 out of 5 stars
4.1 out of 5
40 customer ratings
5 star 58% (58%) 58%
4 star 21% (21%) 21%
3 star 4% (4%) 4%
2 star 4% (4%) 4%
1 star 14% (14%) 14%
How does Amazon calculate star ratings?