Customer reviews

4.4 out of 5 stars
4.4 out of 5
18 customer ratings
5 star 57% (57%) 57%
4 star 29% (29%) 29%
3 star 14% (14%) 14%
2 star 0% (0%) 0%
1 star 0% (0%) 0%
How does Amazon calculate star ratings?