Jump rope

A jump rope, skipping rope or skip rope is the primary tool used in the game of skipping played by children and many young adults, where one or more participants jump over a spinning rope so that it passes under their feet and over their heads. This may consist of one participant twirling and jumping the rope, or a minimum of three participants taking turns, two of which twirl the rope while one or more jumps. Sometimes the latter is played with two twirling ropes; this form of the activity is called Double Dutch and is significantly more difficult.
See more at Wikipedia.org...

Noun
1. a length of rope (usually with handles on each end) that is swung around while someone jumps over it
(synonym) skip rope, skipping rope
(hypernym) rope
2. a child's game or a cardiopulmonary exercise in which the player jumps over a swinging rope
(hypernym) child's game
(hyponym) double Dutch