Customer reviews

4.3 out of 5 stars
4.3 out of 5
7 customer ratings
5 star 52% (52%) 52%
4 star 30% (30%) 30%
3 star 18% (18%) 18%
2 star 0% (0%) 0%
1 star 0% (0%) 0%
How does Amazon calculate star ratings?