Dan & Theresa use this jump rope with their clients in the studio.  Having tried others, they have found this rope to be the smoothest twirling rope on the market. It is made from "Dual-Corded" PVC rope - PVC wrapped around cotton cording to prevent stretching. Steel bearings provide a smooth, consistent swing motion and are highly durable. Dual-injection molded handles allow for a firmer and more comfortable grip while providing the maximum in control. 9ft. length that can be shortened.  It is a must for any jump rope routine.