You tell yourself "jump", you ask yourself "how many times?". Jump, with Smart Rope
https://www.yankodesign.com/2017/07/08/a-trippy-skippy-rope/
You tell yourself "jump", you ask yourself "how many times?". Jump, with Smart Rope
https://www.yankodesign.com/2017/07/08/a-trippy-skippy-rope/