Customer reviews

4.1 out of 5 stars
4.1 out of 5
6 customer ratings
5 star 47% (47%) 47%
4 star 20% (20%) 20%
3 star 32% (32%) 32%
2 star 0% (0%) 0%
1 star 0% (0%) 0%
How does Amazon calculate star ratings?