According to the question, It's a Double Under.
Jumping rope entails the rope going under your feet one time. 1 jump = 1 course. Double-unders require the rope to turn under your feet 2 times per jump.
“Double-unders will increase the muscular persistence of everything from the forearms and biceps and shoulders and traps to the ankle tendons, calves, and hamstrings,”
Thus, It's a Double Under jump rope skill.
To learn more about the benefits of double-unders click here:
https://brainly.com/question/13522767