Customer reviews

4.1 out of 5 stars
4.1 out of 5
159 customer ratings
5 star 60% (60%) 60%
4 star 15% (15%) 15%
3 star 11% (11%) 11%
2 star 4% (4%) 4%
1 star 10% (10%) 10%
How does Amazon calculate star ratings?