AEOLOS Speed Jump Rope Replacement Cable, 2 Pack 10ft Stainless Steel Ultra Speed Cables with Nylon Polymer Coating for Maximum Speed Lightweight Durability ADDED VALUE - Replacement cable set comes with 1 blue cable and 1 red cable and 1 carry bag, Each cable comes with 2 cable attachment pieces 2 cable end caps, 2 cable twisted rings . MAXIMUM ROTATION SPEED - Coated with a Nylon Polymer to reduce friction through the air, these jump rope cables will give you the fastest cable rotations available today. Make sure you try double unders and triple unders. FULLY ADJUSTABLE & COMPATIBLE - Designed to be compatible with most jump ropes that are fitted with a ball bearing system, the cables are easy to adjust ,it will suit heights from 4'6" to 6'9". FULL PROTECTION - The Nylon Polymer coating will also provide protection for not only the cable but your shins and feet as well. With the speed you will reach, protection from whipping is reduced. ULTRA DURABLE STAINLESS STEEL CABLE - Made from stainless steel, the cable and screws are durable and will last the most rigorous jump rope regimes. Perfect for fitness training at home or in the gym, CrossFit, boxing, MMA and other sports.