Customer reviews

2.4 out of 5 stars
2.4 out of 5
5 customer ratings
5 star 25% (25%) 25%
4 star 0% (0%) 0%
3 star 21% (21%) 21%
2 star 0% (0%) 0%
1 star 54% (54%) 54%
How does Amazon calculate star ratings?