Customer reviews

4.4 out of 5 stars
4.4 out of 5
19 customer ratings
5 star 73% (73%) 73%
4 star 9% (9%) 9%
3 star 9% (9%) 9%
2 star 0% (0%) 0%
1 star 9% (9%) 9%
How does Amazon calculate star ratings?