Sportown Exerise Jump Rope for MMA Training, Boxing, Bodybuilding, Personal Training Equipment , Home and Workouts (Black, One Size) Advantage 1:Best jumping ropefor any exerise, cross fit workout or boxing, martial arts,training, indoors or outdoors. Advantage 2:Strong,light weight trong,lightweight handles friction-free,ultra fast action ,ultra fast results. Advantage 3:Adjudtable -length jump rope designed for speed training .Comfort-grip thick from handles are design for an ergonomic grip . Advantage 4: Made of high quality PVC and esnsures fast spinning and no kinking ,tangling or bending. Warm tips :SOLD BY SPORTOWN ONLY ,please make sure to purchasing in Sprtown Limited.