Customer reviews

3.4 out of 5 stars
3.4 out of 5
6 customer ratings
5 star 49% (49%) 49%
4 star 0% (0%) 0%
3 star 21% (21%) 21%
2 star 0% (0%) 0%
1 star 30% (30%) 30%
How does Amazon calculate star ratings?