What do you think?
Monkii featuring the 4-Minute Tabata Workout...
https://www.kickstarter.com/projects/monkiibars/monkii-360
Monkii featuring the 4-Minute Tabata Workout...
https://www.kickstarter.com/projects/monkiibars/monkii-360
This post first appeared on How To Perform The Tabata Training?, please read the originial post: here