Customer reviews

4.5 out of 5 stars
4.5 out of 5
121 customer ratings
5 star 75% (75%) 75%
4 star 12% (12%) 12%
3 star 4% (4%) 4%
2 star 5% (5%) 5%
1 star 4% (4%) 4%
How does Amazon calculate star ratings?