Customer reviews

3.8 out of 5 stars
3.8 out of 5
17 customer ratings
5 star 44% (44%) 44%
4 star 21% (21%) 21%
3 star 18% (18%) 18%
2 star 7% (7%) 7%
1 star 10% (10%) 10%
How does Amazon calculate star ratings?