Customer reviews

3.3 out of 5 stars
3.3 out of 5
12 customer ratings
5 star 40% (40%) 40%
4 star 11% (11%) 11%
3 star 18% (18%) 18%
2 star 0% (0%) 0%
1 star 30% (30%) 30%
How does Amazon calculate star ratings?