Customer reviews

4.3 out of 5 stars
4.3 out of 5
12 customer ratings
5 star 67% (67%) 67%
4 star 11% (11%) 11%
3 star 12% (12%) 12%
2 star 11% (11%) 11%
1 star 0% (0%) 0%
How does Amazon calculate star ratings?