Customer reviews

4.1 out of 5 stars
4.1 out of 5
144 customer ratings
5 star 66% (66%) 66%
4 star 9% (9%) 9%
3 star 2% (2%) 2%
2 star 13% (13%) 13%
1 star 10% (10%) 10%
How does Amazon calculate star ratings?