Increase cardio fitness, coordination and agility with the Pure 2Improve Weighted Jump Rope with 3 removable ropes. Length ropes: 2,85cm, yellow: 2,5mm 66gram/red: 3,5mm 120gram/black: 4,5mm 200gr. Black grips with Pure 2Improve logo. These jump ropes are more than just a speed rope. It uses weighted jump ropes to help you become more efficient and meet your fitness and jump rope goals more quickly. Three powerful training jump ropes in one set! Training with progressively heavier ropes is a highly effective way to improve your ability. Quick handles have stainless steel ball bearings from smooth rotational action.