Customer reviews

3.3 out of 5 stars
3.3 out of 5
5 customer ratings
5 star 30% (30%) 30%
4 star 18% (18%) 18%
3 star 29% (29%) 29%
2 star 0% (0%) 0%
1 star 24% (24%) 24%
How does Amazon calculate star ratings?