Customer reviews

4.5 out of 5 stars
4.5 out of 5
19 customer ratings
5 star 58% (58%) 58%
4 star 30% (30%) 30%
3 star 12% (12%) 12%
2 star 0% (0%) 0%
1 star 0% (0%) 0%
How does Amazon calculate star ratings?