Customer reviews

4.2 out of 5 stars
4.2 out of 5
257 customer ratings
5 star 61% (61%) 61%
4 star 15% (15%) 15%
3 star 13% (13%) 13%
2 star 5% (5%) 5%
1 star 6% (6%) 6%
How does Amazon calculate star ratings?