Customer reviews

4.1 out of 5 stars
4.1 out of 5
230 customer ratings
5 star 58% (58%) 58%
4 star 18% (18%) 18%
3 star 9% (9%) 9%
2 star 5% (5%) 5%
1 star 10% (10%) 10%
How does Amazon calculate star ratings?