Customer reviews

4.5 out of 5 stars
4.5 out of 5
172 customer ratings
5 star 78% (78%) 78%
4 star 10% (10%) 10%
3 star 6% (6%) 6%
2 star 1% (1%) 1%
1 star 5% (5%) 5%
How does Amazon calculate star ratings?