Customer reviews

4.1 out of 5 stars
4.1 out of 5
7 customer ratings
5 star 65% (65%) 65%
4 star 18% (18%) 18%
3 star 0% (0%) 0%
2 star 0% (0%) 0%
1 star 18% (18%) 18%
How does Amazon calculate star ratings?