Customer reviews

2.8 out of 5 stars
2.8 out of 5
5 customer ratings
5 star 38% (38%) 38%
4 star 0% (0%) 0%
3 star 0% (0%) 0%
2 star 23% (23%) 23%
1 star 38% (38%) 38%
How does Amazon calculate star ratings?