Customer reviews

2.4 out of 5 stars
2.4 out of 5
3 customer ratings
5 star 0% (0%) 0%
4 star 35% (35%) 35%
3 star 18% (18%) 18%
2 star 0% (0%) 0%
1 star 46% (46%) 46%
How does Amazon calculate star ratings?