Customer reviews

4.7 out of 5 stars
4.7 out of 5
3,276 customer ratings
5 star 79% (79%) 79%
4 star 13% (13%) 13%
3 star 5% (5%) 5%
2 star 1% (1%) 1%
1 star 1% (1%) 1%
How does Amazon calculate star ratings?