Customer reviews

3.8 out of 5 stars
3.8 out of 5
6 customer ratings
5 star 59% (59%) 59%
4 star 0% (0%) 0%
3 star 20% (20%) 20%
2 star 0% (0%) 0%
1 star 21% (21%) 21%
How does Amazon calculate star ratings?