Meet the Doubleman Overspeed Trainer: a two-person training device that helps you work on leg speed, power, and strength. It also helps develop stride length. When one athlete is faster than the other, the training speed gains more speed due to Overspeed pull.
Must see leg & booty exercise tools
More gadgets like this ➡️ : here
*some of our articles have aff links. Please read our disclaimer on how we fund Exxponent.