Customer reviews

3.8 out of 5 stars
3.8 out of 5
4 customer ratings
5 star 43% (43%) 43%
4 star 28% (28%) 28%
3 star 0% (0%) 0%
2 star 29% (29%) 29%
1 star 0% (0%) 0%
How does Amazon calculate star ratings?