Customer reviews

3.5 out of 5 stars
3.5 out of 5
12 customer ratings
5 star 39% (39%) 39%
4 star 23% (23%) 23%
3 star 10% (10%) 10%
2 star 10% (10%) 10%
1 star 18% (18%) 18%
How does Amazon calculate star ratings?