Vert Shock program created by Adam Folker and best pro-dunker Justin "Jus Fly" Darlington and this review created by 2 vert shock users. The vert shock program lasts 8 weeks. After last week, you'll have added 9-15 inches to your vertical jump. Do you want to jump higher and dunk. And do you want this quickly and safely, Vert Shock is the only program for you.. For more information; http://bit.ly/1PnpT9d vertical leap how to jump higher how to improve your vertical https://www.youtube.com/watch?v=fdR-qCCKxPIhttps://youtu.be/fdR-qCCKxPI