Customer reviews

3.9 out of 5 stars
3.9 out of 5
15 customer ratings
5 star 49% (49%) 49%
4 star 20% (20%) 20%
3 star 18% (18%) 18%
2 star 0% (0%) 0%
1 star 13% (13%) 13%
How does Amazon calculate star ratings?