Customer reviews

3.9 out of 5 stars
3.9 out of 5
11 customer ratings
5 star 43% (43%) 43%
4 star 12% (12%) 12%
3 star 33% (33%) 33%
2 star 12% (12%) 12%
1 star 0% (0%) 0%
How does Amazon calculate star ratings?