Customer reviews

3.8 out of 5 stars
3.8 out of 5
3 customer ratings
5 star 60% (60%) 60%
4 star 0% (0%) 0%
3 star 0% (0%) 0%
2 star 40% (40%) 40%
1 star 0% (0%) 0%
How does Amazon calculate star ratings?