Customer reviews

3.7 out of 5 stars
3.7 out of 5
11 customer ratings
5 star 50% (50%) 50%
4 star 22% (22%) 22%
3 star 0% (0%) 0%
2 star 0% (0%) 0%
1 star 27% (27%) 27%
How does Amazon calculate star ratings?