Customer reviews

4.2 out of 5 stars
4.2 out of 5
7 customer ratings
5 star 54% (54%) 54%
4 star 34% (34%) 34%
3 star 0% (0%) 0%
2 star 0% (0%) 0%
1 star 12% (12%) 12%
How does Amazon calculate star ratings?