Customer reviews

4.3 out of 5 stars
4.3 out of 5
133 customer ratings
5 star 68% (68%) 68%
4 star 12% (12%) 12%
3 star 7% (7%) 7%
2 star 9% (9%) 9%
1 star 5% (5%) 5%
How does Amazon calculate star ratings?