Customer reviews

3.9 out of 5 stars
3.9 out of 5
15 customer ratings
5 star 44% (44%) 44%
4 star 18% (18%) 18%
3 star 17% (17%) 17%
2 star 21% (21%) 21%
1 star 0% (0%) 0%
How does Amazon calculate star ratings?