Customer reviews

4.2 out of 5 stars
4.2 out of 5
8 customer ratings
5 star 63% (63%) 63%
4 star 6% (6%) 6%
3 star 14% (14%) 14%
2 star 16% (16%) 16%
1 star 0% (0%) 0%
How does Amazon calculate star ratings?