Add air to your game with the most comfortable, easy-to-use vertical trainer available. Built to increase explosive leg power and strengthen key lower body muscles to maximize jumping ability, HOPZ is perfect for basketball, football, volleyball or any player who wants to add to their vertical.
 
Strap on to build explosive leg power and strengthen jumping muscles
Move resistance cables on belt to target specific muscles
Change resistance cable quickly with patented Slide-Lock on belt and ankle straps
Adjustable belt with side padding fits better and helps with proper cable placement
Durable cables and ankle straps with built-in shoe harness keeps straps in place