Customer reviews

2.2 out of 5 stars
2.2 out of 5
5 customer ratings
5 star 24% (24%) 24%
4 star 0% (0%) 0%
3 star 0% (0%) 0%
2 star 24% (24%) 24%
1 star 52% (52%) 52%
How does Amazon calculate star ratings?