Customer reviews

3.7 out of 5 stars
3.7 out of 5
6 customer ratings
5 star 31% (31%) 31%
4 star 30% (30%) 30%
3 star 19% (19%) 19%
2 star 20% (20%) 20%
1 star 0% (0%) 0%
How does Amazon calculate star ratings?