As the foot is lifted the tubes return to their original shape and release the energy like a spring being sprung.
Kind of like a spring being sprung. As the foot is lifted the tubes return to their original shape and release the energy.
As the foot is lifted the tubes return to their original shape and release the energy. Kind of like a spring being sprung.
As the foot is lifted the tubes return to their original shape and release the energy. Kind of like a spring being sprung.