Only 10% of people can find "dice" with 7 points, can you?

This picture is made hit on social media because it is a great test for eye.
In the photograph shows a large number of cubes with different numbers of points (1,2,3,4,5 or 6 points), while only one of them has 7 points,
Can you find this file ?!

If you have not been able to find look at the picture below: