Skipping ropes have to be sturdy in order to withstand the amounts of wear and tear that they will encounter. Having a Polypropylene rope will ensure its long life. The use of a transparent rope of 9 feet will enable you to keep going at the workout without getting distracted. 5 mm rope Diameter. The Ecowellness skipping rope is thin enough to not come in the way and trip you, while still being thick enough that it will not break easily. Length: 108 inch.