Customer reviews

4.4 out of 5 stars
4.4 out of 5
21 customer ratings
5 star 73% (73%) 73%
4 star 5% (5%) 5%
3 star 10% (10%) 10%
2 star 13% (13%) 13%
1 star 0% (0%) 0%
How does Amazon calculate star ratings?