Customer reviews

4.1 out of 5 stars
4.1 out of 5
21 customer ratings
5 star 65% (65%) 65%
4 star 7% (7%) 7%
3 star 17% (17%) 17%
2 star 0% (0%) 0%
1 star 11% (11%) 11%
How does Amazon calculate star ratings?