Customer reviews

4.1 out of 5 stars
4.1 out of 5
251 customer ratings
5 star 53% (53%) 53%
4 star 23% (23%) 23%
3 star 11% (11%) 11%
2 star 5% (5%) 5%
1 star 8% (8%) 8%
How does Amazon calculate star ratings?