Customer reviews

3.9 out of 5 stars
3.9 out of 5
10 customer ratings
5 star 66% (66%) 66%
4 star 0% (0%) 0%
3 star 13% (13%) 13%
2 star 0% (0%) 0%
1 star 21% (21%) 21%
How does Amazon calculate star ratings?