Customer reviews

3.8 out of 5 stars
3.8 out of 5
20 customer ratings
5 star 60% (60%) 60%
4 star 7% (7%) 7%
3 star 7% (7%) 7%
2 star 7% (7%) 7%
1 star 20% (20%) 20%
How does Amazon calculate star ratings?