Customer reviews

4.2 out of 5 stars
4.2 out of 5
12 customer ratings
5 star 63% (63%) 63%
4 star 12% (12%) 12%
3 star 13% (13%) 13%
2 star 0% (0%) 0%
1 star 11% (11%) 11%
How does Amazon calculate star ratings?