Customer reviews

3.4 out of 5 stars
3.4 out of 5
19 customer ratings
5 star 34% (34%) 34%
4 star 14% (14%) 14%
3 star 23% (23%) 23%
2 star 18% (18%) 18%
1 star 11% (11%) 11%
How does Amazon calculate star ratings?