http://www.theverticalproject.com/impossible/
Failure Is Impossible!
The World's Undisputed #1 Vertical Jump Expert Is So Confident That His All-New, Over-Proven Double Your Vertical Leap System Can Blow Your Jump And Athleticism Out of This Stratosphere. He Is Personally Issuing You An Irresistible, Just-Can't-Lose Challenge. You see, here's what I just don't get: If you knew it was impossible to fail. then why on earth would you even bother trying to increase your vertical jump by 6 - 12 inches . when all along, you could DOUBLE it? Well guess what? . If You Don't Pack-On A Very Minimum 6 Inches Of Vertical Leap In Just 60 Short Days (So You Immediately Know ... Visit the original website to read more...
TheVerticalProject.com: Double Your Vertical Leap.
Why Increase Your Vertical Leap By 6-12 Inches, When You Can Double It?!