The Perfect Double Dutch Ropes made by Double Dutch Aerobics are just that, PERFECT! They do not hurt upon contact and each pair of Double Dutch ropes comes with a 10 minute consultation, just in case you need a little help remembering how to turn or jump. The core of these ropes are designed to provide optimal strength & weight for effective turning. Our ropes are used by World Champions, Double Dutch Competitions and everyone who used to jump until the street lights came on. You made the right choice!