Customer reviews

4.4 out of 5 stars
4.4 out of 5
6 customer ratings
5 star 63% (63%) 63%
4 star 19% (19%) 19%
3 star 19% (19%) 19%
2 star 0% (0%) 0%
1 star 0% (0%) 0%
How does Amazon calculate star ratings?