Customer reviews

3.5 out of 5 stars
3.5 out of 5
21 customer ratings
5 star 52% (52%) 52%
4 star 10% (10%) 10%
3 star 7% (7%) 7%
2 star 0% (0%) 0%
1 star 31% (31%) 31%
How does Amazon calculate star ratings?