Customer reviews

3.9 out of 5 stars
3.9 out of 5
313 customer ratings
5 star 53% (53%) 53%
4 star 15% (15%) 15%
3 star 8% (8%) 8%
2 star 10% (10%) 10%
1 star 13% (13%) 13%
How does Amazon calculate star ratings?