Customer reviews

3.1 out of 5 stars
3.1 out of 5
7 customer ratings
5 star 27% (27%) 27%
4 star 18% (18%) 18%
3 star 15% (15%) 15%
2 star 16% (16%) 16%
1 star 24% (24%) 24%
How does Amazon calculate star ratings?