Customer reviews

3.4 out of 5 stars
3.4 out of 5
7 customer ratings
5 star 26% (26%) 26%
4 star 27% (27%) 27%
3 star 29% (29%) 29%
2 star 0% (0%) 0%
1 star 18% (18%) 18%
How does Amazon calculate star ratings?