Revolution is a really awesome trick.WHY,
1. you can spin a single playing card on your finger for about a minute.
2.you can spin a deck of cards on your finger.
3. Its so fun to learn.
4. looks amazing.
And yes it is hard but only take about a week and you can spin that think while walking.
I highly recommend this trick.
BUY THIS NOW AND YOU CAN TAKE YOUR CARDS OUT FOR A SPIN(see what I did there).