Customer reviews

4.2 out of 5 stars
4.2 out of 5
30 customer ratings
5 star 60% (60%) 60%
4 star 18% (18%) 18%
3 star 8% (8%) 8%
2 star 6% (6%) 6%
1 star 8% (8%) 8%
How does Amazon calculate star ratings?