Customer reviews

3.8 out of 5 stars
3.8 out of 5
20 customer ratings
5 star 53% (53%) 53%
4 star 9% (9%) 9%
3 star 15% (15%) 15%
2 star 11% (11%) 11%
1 star 12% (12%) 12%
How does Amazon calculate star ratings?