Customer reviews

4.1 out of 5 stars
4.1 out of 5
18 customer ratings
5 star 58% (58%) 58%
4 star 15% (15%) 15%
3 star 14% (14%) 14%
2 star 0% (0%) 0%
1 star 12% (12%) 12%
How does Amazon calculate star ratings?