Customer reviews

3.7 out of 5 stars
3.7 out of 5
19 customer ratings
5 star 44% (44%) 44%
4 star 21% (21%) 21%
3 star 7% (7%) 7%
2 star 16% (16%) 16%
1 star 12% (12%) 12%
How does Amazon calculate star ratings?