Customer reviews

4.6 out of 5 stars
4.6 out of 5
1,221 customer ratings
5 star 79% (79%) 79%
4 star 10% (10%) 10%
3 star 5% (5%) 5%
2 star 3% (3%) 3%
1 star 3% (3%) 3%
How does Amazon calculate star ratings?