Customer reviews

4.3 out of 5 stars
4.3 out of 5
7 customer ratings
5 star 50% (50%) 50%
4 star 28% (28%) 28%
3 star 22% (22%) 22%
2 star 0% (0%) 0%
1 star 0% (0%) 0%
How does Amazon calculate star ratings?