Customer reviews

4.5 out of 5 stars
4.5 out of 5
140 customer ratings
5 star 79% (79%) 79%
4 star 5% (5%) 5%
3 star 7% (7%) 7%
2 star 4% (4%) 4%
1 star 5% (5%) 5%
How does Amazon calculate star ratings?