Customer reviews

2.8 out of 5 stars
2.8 out of 5
5 customer ratings
5 star 30% (30%) 30%
4 star 19% (19%) 19%
3 star 0% (0%) 0%
2 star 0% (0%) 0%
1 star 51% (51%) 51%
How does Amazon calculate star ratings?