Customer reviews

4.4 out of 5 stars
4.4 out of 5
2 customer ratings
5 star 44% (44%) 44%
4 star 56% (56%) 56%
3 star 0% (0%) 0%
2 star 0% (0%) 0%
1 star 0% (0%) 0%
How does Amazon calculate star ratings?