Customer reviews

3.9 out of 5 stars
3.9 out of 5
40 customer ratings
5 star 56% (56%) 56%
4 star 11% (11%) 11%
3 star 14% (14%) 14%
2 star 7% (7%) 7%
1 star 11% (11%) 11%
How does Amazon calculate star ratings?