well i know of three sites that sell these and you can read everything about them including schools that use them.

here are two of the links
http://vertcoach.com/springbak-insoles.html

http://www.springsoles.com/

__________________
Age: 16
Height: 6'3
Standing reach: 8'3
Wingspan: 6'5 1/4
Standing vert: 26inch
Running 2 leg: Not sure probly around 30
Running 1 leg: not sure probly around 24 or 25