Customer reviews

2.6 out of 5 stars
2.6 out of 5
18 customer ratings
5 star 22% (22%) 22%
4 star 6% (6%) 6%
3 star 21% (21%) 21%
2 star 11% (11%) 11%
1 star 40% (40%) 40%
How does Amazon calculate star ratings?