Customer reviews

3.7 out of 5 stars
3.7 out of 5
13 customer ratings
5 star 51% (51%) 51%
4 star 10% (10%) 10%
3 star 0% (0%) 0%
2 star 38% (38%) 38%
1 star 0% (0%) 0%
How does Amazon calculate star ratings?