Customer reviews

4.2 out of 5 stars
4.2 out of 5
45 customer ratings
5 star 51% (51%) 51%
4 star 30% (30%) 30%
3 star 9% (9%) 9%
2 star 6% (6%) 6%
1 star 4% (4%) 4%
How does Amazon calculate star ratings?