Customer reviews

4.2 out of 5 stars
4.2 out of 5
12 customer ratings
5 star 46% (46%) 46%
4 star 27% (27%) 27%
3 star 27% (27%) 27%
2 star 0% (0%) 0%
1 star 0% (0%) 0%
How does Amazon calculate star ratings?